Dormer DOR330TIN A002 HSS-TiN Coated Jobber Drill 3.30mm OL:65mm WL:36mm Dormer Metric A002 TiN Jobber Drill Bits have a TiN tip coating for increased tool life and performance. It has a self-centring split point for superb hole quality and positional accuracy. It will drill steel stainless cast iron ceramics plastics and many other materials with ease. Made to DIN 338RN/BS328/ISO 235 standards. PLEASE NOTE ALL sizes under 2.0mm are NOT TiN Coated. Tip diameter: 3.30mm. Working length: 36mm. Overall length: 65mm.