Set of 5 adjustable countersinks that will counterbore if required in one easy step.
Each Bit is fitted with a pilot drill.
Depth is adjustable and a hex key is included.
Sizes. To Fit No.4.5 Screws
No. 6.7 Screws
No. 8.9 Screws
No. 10 Screws
No. 12 Screws
1/4in Shank. (Lock-n-load)