TOP DOG Counterbores are designed to drill and counterbore in one operation to allow for sufficient clearance for a socket head cap screw. They have a straight shank for standard chucking or use with a collet holder. Our 9-piece set will start you out with one of each size offered.

• PN 655-1000 for English Screws #5, #6, #8, #10, 1/4, 5/16, 3/8, 7/16 & 1/2.
• PN 655-1010 for Metric Screws #3mm, #4mm, #5mm, #6mm, #8mm, #10mm, #12mm, #14mm & #16mm.

Specifications and Price can be found below.

To place an order, you can find a list of our distributors here.

Click here for technical data.