I'm looking for endmills that are sort of shaped like a woodruff key cutter. That is an endmill with a smaller shank than the cutting edges. One with something like a 1/2 inch shank and a 3/4" diameter cutter. is there a name for for this type of endmill? Know of a source?
I need to cut shallow slots in a side wall of a big slot, if that makes sense.
Karl
T-slot cutter.
And if he wants one for woodworking, they're called keyhole cutters or bits.
-- Live Simply. Speak Kindly. Care Deeply. Love Generously. -- anon
BINGO! its easier to find something if you know what to call it.
Karl
Karl Townsend asked:
Karl, I call them "end mills". The cutting body can be any length, and any reasonable diameter -- it's not dependent upon the shank diameter, except the shank has to be large enough to take the maximum cutting loads of the bit.
I have a fairly large collection of endmills with larger cutting diameters than their shanks -- like 1" diameter cut with a 1/2" shank.
But it really sounds like you're looking for 'slotting cutters', and a woodruff key cutter is one form. Check out
LLoyd
A fair bit of metal to remove: the slot is 0.100 deep, .800 wide and
2.0" long on the side wall of a big slot in 4140. Two per part, 25 or more parts. I know a woodruff would never hold up. I see they make indexable T slot cutters, I'm watching eBay now.Karl
Karl Townsend Inscribed thus:
Sounds like you want a "T" slot cutter !
I grab every one I see in the second-hand bins because the straight-tooth ones are easily sharpened and they cut smoother key slots in shafts than
1/8" endmills do. Several appear to be custom-modified from something else.They are thinner than T slot cutters and of larger diameter than Woodruffs, more like a slitting saw or side milling cutter on a shaft. Two were made by B&S and Pratt&Whitney. I've never seen them in catalogs.
jsw
I'd take a good bunch of them. I've got some narrow slots too. It would be nice to prototype this part and debug with cheap cutters. Not that I've *ever* crashed a $300 Sandvik face mill. Well, maybe.
Email me with what you'd offer karltownsendembarqmail.com
Karl
I have a cutter in front of me that's about 1-1/2 dia x 5/8 wide on the working end x 3/4" dia neck x 1" shank, and have a few more similar. If you're ready to consummate our teflon-for-drills trade we can throw a few of these into the mix if they'll work for you.
Sorry Ned,
My son took dibs on the drill bits. I guess I shouldn't have left them sit on the shop table.
Karl
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