CMT 191.000.02 5-Piece Upcut Spiral Bit Set 3/16" to 1/2" Shank RHThe CMT 191. 000. 02 is a Upcut Spiral Router Bit. Upcut spiral bits eject chips upward for efficient chip evacuation in deep slots and pockets. Best finish on the lower face of the cut. SET INCLUDES 3 16" x 3 4" Upcut Spiral Bit (1 4" shank) 1 4" x 1" Upcut Spiral Bit (1 4" shank) 5 16" x 1" Upcut Spiral Bit (1 2" shank) 3 8" x 1 1 4" Upcut Spiral Bit (1 2" shank) 1 2" x 1 1 4" Upcut Spiral Bit (1 2" shank) SPECIFICATIONS Shank (S) 1 4" 1 2" Number