CMT 661.021.41 Roundover Bits w/Insert Knives 57/64" x 49/64" (R=5/64") S=1/4" Simpson Strong Tie Bi-Metal 8% Cobalt Construction 8%

Bi-Metal 8% Cobalt Construction 8% Cobalt BIM teeth provide 2X longer cutting life than standard hole saws

eliminating the need for manual spacing tools between boards

and what is it made from

080 is a 5/16" diameter 2 Flute Dowel Drill (Short Series (57

Prevents blowout on exit

CMT 661.021.41 Roundover Bits w/Insert Knives 57/64" x 49/64" (R=5/64") S=1/4" Simpson Strong Tie Bi-Metal 8% Cobalt Construction 8%The CMT 661. 021. 41 is a 57 64 inch roundover router bit with two replaceable insert knives (R=5 64 inch) and 1 4 inch shank. Features a 4 sided knife insert that can be rotated for 4 usable cutting edges. For rounding over edges on hardwood, softwood, laminates, and chipboard. Bearing guide for accurate edge following. SPECIFICATIONS Order Number 661. 021. 41 Cutting Diameter 57 64" Radius (R) 5 64" Cutting Length (I) 49 64" Shank Diameter 1 4"