Micro 100 RRC3-030-500-187X | 0.1875" (3/16) Min Bore DIA x 0.500" (1/2) Max Bore Depth x 0.0300" Tooth Width x 0.0300" Projection x 0.1875" (3/16) Shank DIA x 2.00" (2) OAL x 0.0030" Radius - Carbide Retaining Ring Grooving Right Hand,