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<div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Industrial handtool</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Not to be confused with <a href="/wiki/Wrecking_bar" class="mw-redirect" title="Wrecking bar">Wrecking bar</a>.</div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_citations_needed plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Breaker_bar" title="Special:EditPage/Breaker bar">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Breaker+bar%22">"Breaker bar"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Breaker+bar%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Breaker+bar%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Breaker+bar%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Breaker+bar%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Breaker+bar%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">May 2010</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Breaker_bar.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Breaker_bar.jpg/250px-Breaker_bar.jpg" decoding="async" width="220" height="69" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Breaker_bar.jpg/330px-Breaker_bar.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Breaker_bar.jpg/500px-Breaker_bar.jpg 2x" data-file-width="4684" data-file-height="1476" /></a><figcaption>Breaker bar</figcaption></figure> <p>A <b>breaker bar</b> (also known as a <i><b>power bar</b></i>) is a long non-ratcheting bar that is used with <a href="/wiki/Socket_wrench" title="Socket wrench">socket wrench</a>-style sockets. They are used to break loose very tight fasteners because their additional length allows the same amount of <a href="/wiki/Force" title="Force">force</a> to generate significantly more <a href="/wiki/Torque" title="Torque">torque</a> than a standard length socket wrench.<sup id="cite_ref-patent_1-0" class="reference"><a href="#cite_note-patent-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 1, 3">: 1, 3 </span></sup> Their use prevents damage to the ratcheting mechanism of a socket wrench. Often, after the first half turn, the fastener is loose enough to be turned with a socket wrench. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Function">Function</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Breaker_bar&action=edit&section=1" title="Edit section: Function"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The long handle on breaker bars compared to shorter wrenches allows a larger torque to be generated with the same amount of force. It is effectively a <a href="/wiki/Lever" title="Lever">lever</a>, one of the <a href="/wiki/Simple_machines" class="mw-redirect" title="Simple machines">simple machines</a>.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Also, the absence of a ratcheting mechanism makes a breaker bar considerably stronger than a ratchet. This allows greater torque to be applied to a fastener without the tool failing. A breaker bar can be improvised by inserting a wrench into a length of metal pipe to increase the available torque by using the pipe to extend the effective length of the breaker bar. A pipe used for this purpose is called a <a href="/wiki/Cheater_bar" title="Cheater bar">cheater bar</a> or snipe. </p> <div class="mw-heading mw-heading2"><h2 id="Materials">Materials</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Breaker_bar&action=edit&section=2" title="Edit section: Materials"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A breaker bar is able to create a larger amount of rotational force compared to a standard socket wrench. A standard breaker bar is strong enough to allow the user to apply up to 2,500 pound-feet (3,400 N⋅m) of torque without breaking the bar.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> A high-end 1/2" socket wrench can withstand a maximum of 500 pound-feet (680 N⋅m) of torque.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Since the breaker bar creates and withstands a larger amount of torque it is often used in place of a standard socket wrench to break loose tight-fitting fasteners. To be able to create these high torque numbers breaker bars have to be made out of a metal of adequate strength properties. </p><p>High-quality breaker bars are typically made of chromium-vanadium steel (AISI 6150).<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Chromium-vanadium steel is known for its high strength, excellent toughness, and shock resistance.<sup id="cite_ref-:0_6-0" class="reference"><a href="#cite_note-:0-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Chromium vanadium steel has a yield strength at 0.2% offset of 84.0 kilo-pound per square inch (KSI). Meaning, chromium-vanadium steel can withstand up to 84 KSI before it begins to yield.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> If the steel is unloaded before the yield point it is elastic and the material will return to its original configuration. Because of its high yield strength and shock resistance, standard socket wrenches, and breaker bars are fashioned from this material. In addition to its high yield strength, chromium-vanadium steel provides resistance to abrasion, oxidation, and corrosion making it a viable material for the production of tools.<sup id="cite_ref-:0_6-1" class="reference"><a href="#cite_note-:0-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Physics">Physics</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Breaker_bar&action=edit&section=3" title="Edit section: Physics"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Rotational force, also known as torque, varies depending on where the force is applied. If the force is applied closer to the object the torque is smaller than if the same amount of force is applied further from the object. A breaker bar creates a larger force due to the amount of torque that can be applied through a longer handle versus a shorter one. A lever arm, also known as a moment arm, is an important factor to consider when measuring the torque of a breaker bar. Having a longer lever arm creates a larger surface area for the force to be applied, which increases rotational force. Surface area is the measure of the total amount of area an object occupies. When the radius of the moment arm is increased, the surface area is proportionally increased.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>The concept that torque is related to a larger moment arm is shown in the torque equation. The torque equation can be written as follows: <b>𝜏 (Torque) = F (Force) x r (Radius).</b> Since the force applied is multiplied by the radius of the moment arm, having a larger radius subsequently creates a larger torque. This makes the torque value on the point of rotation much greater as the size of the handle or moment arm increases.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Breaker_bar&action=edit&section=4" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-patent-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-patent_1-0">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.google.com/patents?id=drFmAAAAEBAJ&zoom=4&dq=breaker%20bar%20tool&pg=PA1#v=onepage&q=breaker%20bar%20tool&f=false">U.S. Patent 4,811,638 (1989)</a><sup class="noprint Inline-Template"><span style="white-space: nowrap;">[<i><a href="/wiki/Wikipedia:Link_rot" title="Wikipedia:Link rot"><span title=" Dead link tagged June 2024">dead link</span></a></i><span style="visibility:hidden; color:transparent; padding-left:2px">‍</span>]</span></sup>. Retrieved 3 May 2010</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://hyperphysics.phy-astr.gsu.edu/hbase/Mechanics/lever.html">"Simple Machines"</a>. <i>hyperphysics.phy-astr.gsu.edu</i>. <q>With a lever, one can obtain a multiplication of force, but of course not a multiplication of energy. The multiplication of force can be seen to arise from the equilibrium of torques, where an input force Fe with a long lever arm Le can balance a larger resistance force Fr with a short lever arm Lr.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=hyperphysics.phy-astr.gsu.edu&rft.atitle=Simple+Machines&rft_id=http%3A%2F%2Fhyperphysics.phy-astr.gsu.edu%2Fhbase%2FMechanics%2Flever.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABreaker+bar" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFSmith2022" class="citation web cs1">Smith, John (6 January 2022). <a rel="nofollow" class="external text" href="https://www.cleverhandymen.com/can-you-use-a-torque-wrench-as-a-breaker-bar/">"Can You Use A Torque Wrench As A Breaker Bar?"</a>. <i>Clever Handymen</i><span class="reference-accessdate">. Retrieved <span class="nowrap">14 February</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Clever+Handymen&rft.atitle=Can+You+Use+A+Torque+Wrench+As+A+Breaker+Bar%3F&rft.date=2022-01-06&rft.aulast=Smith&rft.aufirst=John&rft_id=https%3A%2F%2Fwww.cleverhandymen.com%2Fcan-you-use-a-torque-wrench-as-a-breaker-bar%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABreaker+bar" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFDehner2022" class="citation web cs1">Dehner, Robert S. (2 September 2022). <a rel="nofollow" class="external text" href="https://powertoolinstitute.net/how-much-torque-can-a-drive-take/">"How Much Torque Can A Drive Take? (1/2, 1/4, 3/8 Drive) [Analyzed]"</a>. <i>powertoolinstitute.net</i><span class="reference-accessdate">. Retrieved <span class="nowrap">14 February</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=powertoolinstitute.net&rft.atitle=How+Much+Torque+Can+A+Drive+Take%3F+%281%2F2%2C+1%2F4%2C+3%2F8+Drive%29+%5BAnalyzed%5D&rft.date=2022-09-02&rft.aulast=Dehner&rft.aufirst=Robert+S.&rft_id=https%3A%2F%2Fpowertoolinstitute.net%2Fhow-much-torque-can-a-drive-take%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABreaker+bar" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFSui2020" class="citation web cs1">Sui, Jason (3 March 2020). <a rel="nofollow" class="external text" href="https://www.autoguide.com/top-10-best-breaker-bars#:~:text=Almost%20all%20good%20quality%20breaker,swivels%20makes%20certain%20jobs%20easier.">"Top 10 Best Breaker Bars"</a>. <i>AutoGuide.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">13 February</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=AutoGuide.com&rft.atitle=Top+10+Best+Breaker+Bars&rft.date=2020-03-03&rft.aulast=Sui&rft.aufirst=Jason&rft_id=https%3A%2F%2Fwww.autoguide.com%2Ftop-10-best-breaker-bars%23%3A~%3Atext%3DAlmost%2520all%2520good%2520quality%2520breaker%2Cswivels%2520makes%2520certain%2520jobs%2520easier.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABreaker+bar" class="Z3988"></span></span> </li> <li id="cite_note-:0-6"><span class="mw-cite-backlink">^ <a href="#cite_ref-:0_6-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:0_6-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.metalsupermarkets.com/alloy-steel-6150/">"Alloy Steel 6150 | Grade Summary"</a>. <i>Metal Supermarkets</i><span class="reference-accessdate">. Retrieved <span class="nowrap">14 February</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Metal+Supermarkets&rft.atitle=Alloy+Steel+6150+%7C+Grade+Summary&rft_id=https%3A%2F%2Fwww.metalsupermarkets.com%2Falloy-steel-6150%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABreaker+bar" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://boltport.com/materials/chromium-vanadium-steel/aisi-6150/">"Chromium Vanadium Steel AISI 6150 – Boltport Fasteners"</a>. <i>boltport.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">14 February</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=boltport.com&rft.atitle=Chromium+Vanadium+Steel+AISI+6150+%E2%80%93+Boltport+Fasteners&rft_id=https%3A%2F%2Fboltport.com%2Fmaterials%2Fchromium-vanadium-steel%2Faisi-6150%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABreaker+bar" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://ecampus.matc.edu/mihalj/scitech/unit1/levers/levers.htm">"Simple Machines"</a>. <i>ecampus.matc.edu</i><span class="reference-accessdate">. Retrieved <span class="nowrap">14 February</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=ecampus.matc.edu&rft.atitle=Simple+Machines&rft_id=https%3A%2F%2Fecampus.matc.edu%2Fmihalj%2Fscitech%2Funit1%2Flevers%2Flevers.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABreaker+bar" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.physics.uoguelph.ca/torque-and-rotational-motion-tutorial">"Torque and Rotational Motion Tutorial | Physics"</a>. <i>physics.uoguelph.ca</i><span class="reference-accessdate">. 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<li><a href="/wiki/Hammer" title="Hammer">Hammer</a></li> <li><a href="/wiki/Hammer_tacker" title="Hammer tacker">Hammer tacker</a></li> <li><a href="/wiki/Hawk_(plasterer%27s_tool)" title="Hawk (plasterer's tool)">Hawk</a></li> <li><a href="/wiki/Headlamp_(outdoor)" title="Headlamp (outdoor)">Headlamp</a></li> <li><a href="/wiki/Hex_key" title="Hex key">Hex key</a></li> <li><a href="/wiki/Hole_punch" title="Hole punch">Hole punch</a></li> <li><a href="/wiki/Impact_driver" title="Impact driver">Impact driver</a></li> <li><a href="/wiki/Jack_(device)" title="Jack (device)">Jack</a></li> <li><a href="/wiki/Locking_pliers" title="Locking pliers">Locking pliers</a></li> <li><a href="/wiki/Lug_wrench" title="Lug wrench">Lug wrench</a></li> <li><a href="/wiki/Mallet" title="Mallet">Mallet</a></li> <li><a href="/wiki/Mitre_box" title="Mitre box">Mitre box</a></li> <li><a href="/wiki/Monkey_wrench" title="Monkey wrench">Monkey wrench</a></li> <li><a href="/wiki/Multi-tool" title="Multi-tool">Multi-tool</a></li> <li><a href="/wiki/Nut_driver" title="Nut driver">Nut driver</a></li> <li><a href="/wiki/Paint_roller" title="Paint roller">Paint roller</a></li> <li><a href="/wiki/Brush#paintbrushes" title="Brush">Paintbrush</a></li> <li><a href="/wiki/Pencil_sharpener" title="Pencil sharpener">Pencil sharpener</a></li> <li><a href="/wiki/Persian_drill" title="Persian drill">Persian drill</a></li> <li><a href="/wiki/Pincers_(tool)" title="Pincers (tool)">Pincers</a></li> <li><a href="/wiki/Pipe_wrench" title="Pipe wrench">Pipe wrench</a></li> <li><a href="/wiki/Pliers" title="Pliers">Pliers</a></li> <li><a href="/wiki/Plumber_wrench" title="Plumber wrench">Plumber wrench</a></li> <li><a href="/wiki/Plumber%27s_snake" title="Plumber's snake">Plumber's snake</a></li> <li><a href="/wiki/Plunger" title="Plunger">Plunger</a></li> <li><a href="/wiki/Podger_spanner" title="Podger spanner">Podger spanner</a></li> <li><a href="/wiki/Punch_(tool)" title="Punch (tool)">Punch</a></li> <li><a href="/wiki/Punch_down_tool" title="Punch down tool">Punch down tool</a></li> <li><a href="/wiki/Scratch_awl" title="Scratch awl">Scratch awl</a></li> <li><a href="/wiki/Screwdriver" title="Screwdriver">Screwdriver</a></li> <li><a href="/wiki/Sledgehammer" title="Sledgehammer">Sledgehammer</a></li> <li><a href="/wiki/Slide_hammer" title="Slide hammer">Slide hammer</a></li> <li><a href="/wiki/Socket_wrench" title="Socket wrench">Socket wrench</a></li> <li><a href="/wiki/Spike_maul" title="Spike maul">Spike maul</a></li> <li><a href="/wiki/Staple_gun" title="Staple gun">Staple gun</a></li> <li><a href="/wiki/Stitching_awl" title="Stitching awl">Stitching awl</a></li> <li><a href="/wiki/Strap_wrench" title="Strap wrench">Strap wrench</a></li> <li><a href="/wiki/Tactical_light" title="Tactical light">Tactical light</a></li> <li><a href="/wiki/Tire_iron" title="Tire iron">Tire iron</a></li> <li><a href="/wiki/Tongue-and-groove_pliers" title="Tongue-and-groove pliers">Tongue-and-groove pliers</a></li> <li><a href="/wiki/Torque_wrench" title="Torque wrench">Torque wrench</a></li> <li><a href="/wiki/Tweezers" title="Tweezers">Tweezers</a></li> <li><a href="/wiki/Upholstery_hammer" title="Upholstery hammer">Upholstery hammer</a></li> <li><a href="/wiki/Wrench" title="Wrench">Wrench</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><div class="hlist"> <dl><dt><a href="/wiki/Template:Types_of_tools" title="Template:Types of tools">Types of tools</a></dt> <dd><a href="/wiki/Template:Cleaning_tools" title="Template:Cleaning tools">Cleaning</a></dd> <dd><a href="/wiki/Template:Cutting_and_abrasive_tools" title="Template:Cutting and abrasive tools">Cutting and abrasive</a></dd> <dd><a href="/wiki/Template:Forestry_tools" title="Template:Forestry tools">Forestry</a></dd> <dd><a href="/wiki/Template:Garden_tools" title="Template:Garden tools">Garden</a></dd> <dd><a href="/wiki/Template:Hand_tools" title="Template:Hand 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