CMT 195.506.11 Solid Carbide 3-Edge Spiral Spiral Bit with Chipbreaker 1/2"The CMT 195. 506. 11 is a 3 Edge Spiral Bit with Chipbreaker. 3 edge spiral bits with chipbreaker for high speed CNC routing. The chipbreaker breaks chips into smaller pieces for better evacuation at aggressive feed rates. SPECIFICATIONS Diameter (D) 1 2" Cutting Height (I) 1 1 2" Total Length (L) 3 1 2" Shank (S) 1 2" Number of Teeth 3R Product Type 3 Edge Spiral Bit with Chipbreaker Shank 1 4" Blade Material Solid Carbide Rotation Right hand (RH)