Nice range of countersink drills.16 pieces.

Nice range of countersink drills.16 pieces.

5 item have 1/4" shanks and range in drill diameter from 5/16th down to 1/4" .
4 have 3/8th shanks (screw in type for multi head drills 1/4"unf thread)and drills from 4-5mm range.
7 have 1/2" shanks (screw in type for multi drill heads 5/16" ,7/16" UNF thread) and range in diameter from 6.6mm to 9.4mm .
All could be reground to your application.Some of these countersink drill cost $30-40-50 each
Drill and countersink at the same time, very handy to have around .