MKM AV48 Master Cobalt ® Bi-Metal Hole Saw 3" (76mm) diameter

This premium line of professional quality hole saws features an M3 high-speed steel cutting edge, electron beam welded to a tough steel backer. Positive rake tooth design provides better chip clearance as teeth cut into wood, plastic or any machinable metal. The 1-1/2" cutting depth cuts easily through 2x4's. A separate arbor is required.