BIT SIZES FOR ROLL PIN SCREW HEADS
Tom,
I found two bit sizes needed checking several screws. You can buy these individually from Brownells so you don't have to buy the entire set:
340-5 (.340 shank diameter- .040 blade thickness)
300-3 (.300 shank diameter - .030 blade thickness)
I would buy a couple of each if I was going to make a habit of this.
|