CRL 82º .486 Diameter Countersink
C.R. LAURENCE 18SCS CRL Brand .486" Countersink for 12 to 14 Screws. CRL Countersinks were specifically designed to cut round countersunk holes in aluminum. They cut faster than standard countersinks and leave a finished hole every time. Smooth drilling action from single cutting edge prevents chatter and fluted edges. The 1/4 inch (6.3 millimeter) shank diameter fits any 1/4 or 3/8 inch (6.3 or 9.5 millimeter) drill chuck..
Produce Smooth, Round Countersunk Holes Every Time | Best Countersink Available for Aluminum | Cut is 82 Degree