Alpen Hss Super 19 Piece Drill Bit Case. -Precision grinding, minimum tolerances, maximum concentricity precision. -Precise milling due to its optimized sharpening of the tip. -Made of top quality steel. -Resistant to breakage, due to controlled heat treatment. -Suitable for construction steels, easy-cutting steels, unalloyed steels, copper, brass, aluminum and plastic. The case is composed of: 1 HSS Super drill bit of 1.0mm. >1 x HSS Super Drill Bit5mm. >1 x 2 HSS Super Drill Bit.0mm. >1 x 2 HSS Super Drill Bit.5mm. >1 x HSS Super 3 drill bit.0mm. >1 x HSS Super 3 drill bit.5mm. >1 x HSS Super 4 drill bit.0mm. >1 x HSS Super 4 drill bit.5mm. >1 x HSS Super 5 drill bit.0mm. >1 x HSS Super 5 drill bit.5mm. >1 x 6 HSS Super Drill Bit.0mm. >1 x 6 HSS Super Drill Bit.5mm. >1 x HSS Super 7 drill bit.0mm. >1 x HSS Super 7 drill bit.5mm. >1 x HSS Super 8 drill bit.0mm. >1 x HSS Super 8 drill bit.5mm. >1 x HSS Super 9 drill bit.0mm. >1 x HSS Super 9 drill bit.5mm. >1 x HSS Super 10 drill bit.0mm.