CMT 192.000.02 Solid Carbide 5-Piece Upcut Spiral Bit Set 3/16" to 1/2" Shank RHThe CMT 192. 000. 02 is a Downcut Spiral Router Bit. 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. SET INCLUDES 3 16" x 3 4" Downcut Spiral Bit (1 4" shank) 1 4" x 1" Downcut Spiral Bit (1 4" shank) 5 16" x 1" Downcut Spiral Bit (1 2" shank) 3 8" x 1 1 4" Downcut Spiral Bit (1 2" shank) 1 2" x 1 1 4" Downcut Spiral Bit (1 2" shank)