Collet inserts for square stock

[Frank S]

As usual I didn't make myself clear. What I was referring to was some deep well sockets do not have the lands cut all the way to the bottom some are merely a hollow cylinder with the lands cut only partially into the body.
Yes I knew the saw cut would have to extend all the way from end to end.

[Gundrx]

Yes, one does have to be selective. Full depth "lands" are ideal, but I have a few odd sizes that are < 1-1/2" deep. They do not grip as well, but sometimes sumthin' is better than nuthin'. BTW, a cut off 12-point works for hexagonal stock as well. Common knowledge is no longer common..... one has to spell things out sometimes. (Sucks getting old sometimes.)
: )