Twist drill bit DIN 338 type N, HSS-G, diameter 4.2 mm, overall length 75 mm

With a diameter of 4.2 mm and a diameter tolerance of h8 this drill to DIN 338 is laid out for common materials. Documented are an overall length of 75 mm and a flute length of 43 mm. The HSS-G version is a drill ground from solid stock in high-performance high-speed steel with increased concentricity.

Benefits

• Diameter 4.2 mm with diameter tolerance h8
• overall length 75 mm, of which 43 mm flute length
• 118 degree point angle, cross grinding from 3 mm upwards
• bright surface
• tapping drill for thread M 5

Technical data

Fields of application

The intended use covers steel, alloyed and unalloyed cast steel below 900 N/mm² tensile strength, grey cast iron, malleable cast iron, spheroidal graphite cast iron, die casting, sintered iron, nickel silver, graphite, short-chipping aluminium alloys, brass and bronze.

Standards

The dimensions are based on DIN 338, type N. The point thinning from 3 mm upwards follows the cross grind to DIN 1412 C.