Dormer A100 series general purpose HSS jobber drills are suitable for use in the majority of general purpose engineering applications. They have good self-centring capability on a wide range of materials and are suitable for both hand and machine use. DIN338RNBS328ISO235Select Option 1/16in1/2in1/4in1/8in11/32in11/64in13/32in13/64in15/32in15/64in17/64in19/64in21/64in25/64in3/16in3/32in3/64in3/8in31/64in5/16in5/32in5/64in7/32in7/64in9/64in Add to Basket Quantity