#12 Diameter, 1/4-28 thread. The unique "high-hook" design of these countersink cutters allows smooth, easy cuts with virtually no chatter. Body diameter is 1/2. They will fit into a stop countersink or they can be used directly with an angle drill.
Cuts Left and Straight. Irwinâ„¢ has once again set the standard for quality snips. Their new Offset Snips feature cold-formed blades that are stronger and sharper than any other brand.