Precise Step Drills For Standard Cap Screws, 6 Pc Set #6 Thru 3/8" with Wood Stand - 404-417
For drilling and counterboring cap screw clearence holes. One drill does two jobs in a single pass. They can easily resharpened and are easily modified for any special length of step.
6 Pc Set #6 Thru 3/8" with Wood Stand