Use with Arbor 11122 or 11123 1/4". Cutters fit 3/8" and 1/2" hand held drill chucks. Includes 3 in a pack. Made of M2 high speed steel. Made in the USA.
This cutter is used to remove the door hinges on some GM trucks. It works perfectly. Bought a tee, thought the cutters would dull when cutting spot welds quickly, but worked slowly, replacing two sets of spigots on the same bit.
As long as you are careful and treat them like glass they work amazingly well. Use lots of cutting fluid or paste and keep the right speed with the right pressure and they'll last a long time. Cut very quickly and cleanly
I use this type of drill bit when drilling holes in cars to access interior trim and repair door dents. They have a built in stop so you never go too deep. I am surprised at how long they last before actually realizing they are becoming dull and I replace them. I drill slower to keep the temperature down. And I know it will help them last longer. Worth the price!