Product Details
The High Speed Steel Solid Pilot Cap Screw Counterbore features a straight shank design and is made from HSS TMX. This 3 flute counterbore is specifically designed for use with 1/4" screws and has a 9/32" pilot diameter, a cutting diameter of 13/32", and a shank diameter of 3/8". With an overall length of 5", it is engineered to efficiently cut the necessary form for cap screws.








