Alpen HSS Cobalt Drill Bit Set - 19-Piece 1.0mm-10.0mm, 0.5mm Increments - Plastic Case

Alpen HSS Cobalt Drill Bit Set 19-Piece (1.0 mm to 10.0 mm, 0.5 mm Increments) in plastic case. This HSS-ECo cobalt KP19 jobber drill set delivers reliable performance for demanding metalwork and workshop use. The 5% cobalt-alloyed high speed steel drills offer excellent heat resistance, making them suitable for drilling steels with tensile strength over 800 N/mm and for stainless steel applications. Sizes range from 1.0 mm to 10.0 mm in 0.5 mm steps, neatly organized in a durable plastic cassette for easy storage and transport.

Applications include structural steels under 400 N/mm, free cutting steels up to 850 N/mm, unalloyed heat treatable steels up to 1,100 N/mm, alloyed heat treatable steels up to 1,300 N/mm, plus copper, brass, aluminium, stainless steels, grey and malleable cast iron, and plastics. Key benefits are high accuracy from a special point shape that can drill without center-punching, CNC heat treatment for improved break resistance, and industrial quality suited to NC machines. The self-centering point increases precision, while temperature resistance up to 600 C and a special grinding profile deliver faster drilling with up to 50% less feed pressure required. Ideal for professionals and serious DIYers needing a versatile cobalt drill bit set.