Description
Steps: 5, 7.5, 10, 13, 16, 19, 21, 23, 26, 29, 31, 33, 35mm Fixed Drilling Steps: Spiral Flute for reduced vibration and greater control through steps Made from HSS: Constructed from M2 high speed steel offering the best combination of strength, heat & wear resistance Flat Shank: Three flats suits 3-jaw chuck