Series 2010 HSS-Co Straight Shank Heavy Duty Stub Drills – Metric | Metric | Heavy duty drill made of cobalt material with excellent heat resistance. For drilling steels up to 1,400N/mm2, stainless steel, heat resistant steels and bronze. Ideally suited for volume production on automatics. Point angle: 135?, helix angle: normal, web thickness: strengthened, tolerance of diameter: h8, tolerance of shank: f11. | Manufactured to BS 328, DIN 1897RN. Point to DIN 1412C.