Product Overview

CRL Weldon Countersinks are known for their high quality unique designs and outstanding performance. They cut chatterless finished holes in aluminum every time. Smooth drilling action from a single cutting edge no matter what angle you cut at. The 1/4" (6 mm) shank diameter fits any 1/4" or 3/8" drill chuck.

• Best Countersink Available for Aluminum
• Single Cutting Edge for Fast Removal of Stock
• For No. 10 Screws