How to drill 154c

LeeThompsonsr

LeeThompsonsr

Joined
Sep 27, 2008
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304
Any one have any experience in drilling and what files to use for some lite custom work on production knives. Going start playing with some of my collection.


Thanks


Lee T.:thumbup:
 
I have worked on some hardened steel with diamond files, solid carbide drills (run slow) and stones both round, flat and trianglular. The stones were used to perform some file work to the back of the blade. A belt sander with aluminum oxide belts will remove metal from you knife blade or hardened steel. Knife blades are usually close to being finished prior to hardening as they become more difficult to work with after. The final edge and polishing is done after heat treating. This is what has worked for me in the past. I'm sure others have their methods as well. Good luck.
 
get some carbide drills so you wont have to worry about the bit getting dull part way through. depending on the rc hardness of your knives, you might have to use diamond files to do any work on them
 
The knife I'm thinking of working on is a Pro-tech Brend #1. I'm assuming that the blade is hardened.


Thanks

Lee T.
 
i wouldnt take any chances and go with carbide bits. just be careful and take your time. carbide is hard but its also brittle
 
+1 on carbide bits. I prefer solid carbide spade bits over "tipped" fluted twist drills for this work; they just seem to work better and last longer. ALWAYS center-punch before you drill, whether it's hardened steel or soft wood. Otherwise your bit WILL chatter and make a nasty oblong hole. Slow your drill down as much as you can and use plenty of cutting fluid/tapping oil to keep things cool. Back the bit out often to prevent swarf from binding between the workpiece and the bit. This is especially important with a spade bit (it has no flutes to allow the swarf to work its way out). Heat and friction and misalignment are your biggest enemies to getting a clean straight hole and keeping your bits in good shape. (You are using a nice square drill press, not a hand-drill, right?)

I'm not a qualified machinist, these are just tips that have helped me a lot. Hopefully a true machinist will chime in :)
 
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