Machinist Burrs - What Are They For?

JimDawson said:
It looks like you might have about $100 or so worth of carbide burrs there.
Click to expand...

So Jim I wonder how much these are worth.
DSCF2786.JPG

Picked them up at a McDonnell Douglas(now Boeing) auction many years ago for $25 when no one else bid on them. Those are just the new ones I have a drawer full of slightly used in my tool box too.
 
Current Enco prices run between $6 and $40 each depending on size, so you have quite a bit a value there.
 
I uaed same style in at machine shop I work in. Was using them on crome stators in down hole drilling tools. The machinist that was teaching me the trade told me that the second cut are for hard materials and the single (continuous cutting edge) are for aluminum. They remove material fast when they are new.
Jack
 
very good find Don--if I had been at the auction you may not have gotten them ---I use them all the time---Dave
 
They actually make burrs specifically for aluminum which are much coarser than those. They look like something you would use on wood (probably would work for that as well...). Burr bits are the most handy but infuriating tools available: they make the most evil metal shavings imaginable!
 
Last edited by a moderator:
I have a few carbide single cut burrs with 3/8" shanks. Any idea what kind of tool drives them? Whatever tool it is, it might be too much for me to hang on to. I have thought about trying them on the mill, but I don't know what for...
 
Hi all , I picked these diamond burs a while back the price was rite $10.00 I'm guessing they would work on carbide ,any thoughts, they have 1/4" shanks
Dreeickimage.jpg
 
They would work very well on carbide.
 
I recently used some of the cheapo HF diamond coated burrs in dremel to ground out part of a broken tap. I was able to drill relieve holes to either side, then get the little burr in there and get rid of the material. Worked much better than I expected, considering they were part of a super cheap accessories package.

I have used the carbide ones in shaping the escapements for shoulder planes in mild steel. They are amazing for free hand shaping of complex shapes. Just beware them slivers!
 
I haven't bought any in years but I paid about 50 cent a piece for 3/16" shaft I think. They are handy when you need them but I don't use them often. My sugestion is dont let it dig in & push it easy towards the meteral.
 
You must log in or register to reply here.
Back
Top