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Cobalt Drill Bits - Any Recs?
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<blockquote data-quote="DaleH" data-source="post: 495429" data-attributes="member: 15636"><p>Besides a good drill bit, do this when cutting hard materials. Get a spray bottle full of water and continuously spray the drill whilst drilling. If you need to, have someone else do that if you need both hands on the drill. You'll cut through 3-5 times fater! </p><p></p><p><strong>Tip </strong>for drilling stainless steels - medium to medium-high speed (RPM) and high feed (push) ... else you will work harden SS if turning the RPMs and pushing it to bite. And I can guarantee you ... you will <em>never </em>drill through such a work hardened piece ...</p></blockquote><p></p>
[QUOTE="DaleH, post: 495429, member: 15636"] Besides a good drill bit, do this when cutting hard materials. Get a spray bottle full of water and continuously spray the drill whilst drilling. If you need to, have someone else do that if you need both hands on the drill. You'll cut through 3-5 times fater! [B]Tip [/B]for drilling stainless steels - medium to medium-high speed (RPM) and high feed (push) ... else you will work harden SS if turning the RPMs and pushing it to bite. And I can guarantee you ... you will [I]never [/I]drill through such a work hardened piece ... [/QUOTE]
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Cobalt Drill Bits - Any Recs?
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