tool bits

poolshooter74

AzB Silver Member
Silver Member
where is the best place to get carbide tool bits? right to left preferably.

are carbide bits better than hss? do they stay sharper longer?

i have noticed that when i trim the tips down to size that it is pushing the shaft just a little instead of cutting in. i think the bit is dull and needs to be replaced.

thanks for the help.
 
Carbide will last far longer that hss. You can but a tool holder from MSC and than look for the type of bit you want to use. It only takes a second to change a bit out and they stay sharp forever. IMO

What you are experiencing is called push out, which is from a dull cutter usually.
 
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I recently stopped using Carbide because I think the HSS cuts much better. It also takes only a few seconds to resharpen if it's dull.
 
lathe tooling

For anyone operating a lathe I think its a worthy investment of time to learn Tool geometry and how to sharpen lathe tooling. With a small investment in a bench grinder and the right wheels for grinding high speed steel and carbide. You can make a brazed on carbide last for years especialy in soft mat like wood. In the Machining trade knowing what is going on between the tool and the material is what seperates the boys from the men. Just google tool geometry for the lathe there is a ton of info.
 
Sharpening tool bits

For anyone operating a lathe I think its a worthy investment of time to learn Tool geometry and how to sharpen lathe tooling. With a small investment in a bench grinder and the right wheels for grinding high speed steel and carbide. You can make a brazed on carbide last for years especialy in soft mat like wood. In the Machining trade knowing what is going on between the tool and the material is what seperates the boys from the men. Just google tool geometry for the lathe there is a ton of info.

Back in the day, technical engineering college day that is, the first week of Machine Tool Technology was all about sharpening tools. It has served me well for almost 50 years.
 
For leather HSS and razor blade work better imo.

I do agree with this, I use and resharpen razor blades for shaping tips. Tool holders with carbide inserts for cutting tenons, facing etc.

I always have had a knack for sharpening tools, knives etc.
 
Carbide does stay sharp longer, but for wood, leather and phenolics I like the cut I get with HSS better. I can sharpen the HSS myself even though they are not as pretty as when done on a fixture.
 
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