CMT 192.505.11B Solid Carbide Downcut Spiral Flush Trim Bit 1/2"The CMT 192. 505. 11B is a Downcut Spiral Router Bit with Bearing Guide. Downcut spiral bits press chips downward to prevent tearout on the upper surface. Best for veneer, laminate, and any application where upper face quality is critical. SPECIFICATIONS Diameter (D) 1 2" Cutting Height (I) 1 1 4" Total Length (L) 3 1 2" Shank (S) 1 2" Number of Teeth 2 Product Type Downcut Spiral Router Bit with Bearing Guide Shank 1 4" Blade Material Solid Carbide