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The Newbies Arena Are you new to knife making? Here is all the help you will need.

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  #1  
Old 02-02-2013, 06:03 PM
jacob7 jacob7 is offline
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big dilemmia

Guys;
I had a hollow ground skinner heat treated and tempered finished sanded and polished. I started the layout of the bolsters and noticed something very wrong- no holes drilled. Is there a bit to drill a RC58 or 59 hole in a 440-C blade? If not what is my next step. Thanks
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Old 02-02-2013, 06:15 PM
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NJStricker NJStricker is offline
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You'll need a carbide bit to go through hardened steel. They are very brittle, so go slow and use plenty of cutting fluid.
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Old 02-02-2013, 06:46 PM
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Ray Rogers Ray Rogers is offline
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Yes, carbide is the thing but there are several kinds of carbide drills. The ones you want for that job are called straight flute carbide drills. Like all carbide drills they are more brittle than HSS drills but the straight flute design makes them much less likely to break. Also, straight flute drills will drill through any thickness of steel while the more common (and cheaper) carbide spade drill is limited to a depth of no more than the diameter of the drill. It's good to have several of the most popular sizes of straight flute drills laying around. Sooner or later, we all need them ...


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Old 02-02-2013, 07:17 PM
Doug Lester Doug Lester is offline
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Try Congress Tools or The Carbide Connection for carbide bits. I think that Tracy and Jantz carry them too but they may only have the spade bits. Use a bit the same size as the pin material then use a carbide burr to ream the hole just a little larger so that the pin material will slip in. With things like Corby bolts or cutlers rivets check the hole size against the shank of the bolt or rivet before resorting to reaming.

Doug


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blade, bolsters, common, cutlers, design, knife, material, rivets, steel, tools


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