Exact Drill Bits & Parts Metal twist drill bit 630857 - Exact 32120, The Exact 32120 HSS Metal twist drill bit is 2 mm in diameter and has a total length of 49 mm. This steel drill bit, made to DIN 338 standards, features a cylinder shank, and comes in a pack of 10 pieces. It is suitable for machining and drilling through sheet metal. Exact 32120 HSS Drill Bit 2mm for Steel/Cast Iron/Bronze, 10 pcs