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Broken bolt in thermostat housing
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<blockquote data-quote="DaleH" data-source="post: 490747" data-attributes="member: 15636"><p><span style="color: #FF0000"><strong>TIPs </strong></span>for drilling into stainless steels ... </p><p></p><ul> <li data-xf-list-type="ul">Have a helper with a spray bottle of water and have them constantly spraying the drill bit ... you will drill thru 3-5X faster! <br /> <span style="color: #BFFFFF">...</span></li> <li data-xf-list-type="ul">You'll save your drill bit. I only use cobalt drills<br /> <span style="color: #BFFFFF">...</span></li> <li data-xf-list-type="ul">Also remember that SS <strong><span style="color: #FF0000">work hardens</span></strong>, it doesn't like high speeds (RPMs) and low/light feeds (push or tool advance), so use medium RPMs and push <em>without breaking the bit</em>, you need to cut aggressively - look for chips to break into pieces<br /> <span style="color: #BFFFFF">...</span></li> <li data-xf-list-type="ul">As with any other drilling effort, make <strong>SURE </strong>to stop periodically and clear the metal chips - the #1 source of heat and dulling your bit</li> </ul></blockquote><p></p>
[QUOTE="DaleH, post: 490747, member: 15636"] [color=#FF0000][b]TIPs [/b][/color]for drilling into stainless steels ... [list][*]Have a helper with a spray bottle of water and have them constantly spraying the drill bit ... you will drill thru 3-5X faster! [color=#BFFFFF]...[/color] [*]You'll save your drill bit. I only use cobalt drills [color=#BFFFFF]...[/color] [*]Also remember that SS [b][color=#FF0000]work hardens[/color][/b], it doesn't like high speeds (RPMs) and low/light feeds (push or tool advance), so use medium RPMs and push [i]without breaking the bit[/i], you need to cut aggressively - look for chips to break into pieces [color=#BFFFFF]...[/color] [*]As with any other drilling effort, make [b]SURE [/b]to stop periodically and clear the metal chips - the #1 source of heat and dulling your bit [/list] [/QUOTE]
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Broken bolt in thermostat housing
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