Bosch 8 Piece Impact Control Hex Shank HSS Drill Bit Set for Tapping

"This drill bit is compatible with a 1/4-inch hex-shank system for universal use with drill drivers, impact drivers and drill stands. The Impact Control HSS Twist Drill Bit offers highly robust drilling in metal, especially with impact drivers. Extremely strong body is extremely robust. The twist drill bit is precision-ground from solid metal and has an oxide-coated flute, giving it an excellent surface quality for slicing through materials with reduced wear. It is suitable for use on alloyed and non-alloyed steel, cast steel, cast iron, sintered iron, non-ferrous metals, sheet metals and plastics.

Pack of 8 (Index) - tap hole diameters for M3-M10

• Highly Robust with Impact Drivers
• Impact Control HSS Twist Drill Bit offers highly robust drilling in metal, especially with impact drivers
• The super-strong body is extremely robust
• Precision-ground from solid metal with an oxide-coated flute for slicing through materials with reduced wear
• Manufactured to DIN 338, drill bit Type N (flute angle) with a 135-degree tip, diameter tolerance h8

Specifications:
Diameter mm: 2,5; 3,3; 4,2; 4,2; 5,0; 5,0; 6,8; 8,5
Total length mm: 69; 75; 83; 83; 91; 91; 109; 117
Set dimension(s) mm: 22,0 x 115,0 x 210"