Twist drill bit DIN 338 type N, HSS-R, diameter 11.8 mm, overall length 142 mm

This type N twist drill to DIN 338 cuts right-hand and comes with a diameter of 11.8 mm. Characteristic values are an overall length of 142 mm and a flute length of 94 mm. The drill is supplied in HSS-R, that is a roll-formed drill made of high-performance high-speed steel with increased resistance to breakage and a ground chamfer.

Benefits

• Diameter 11.8 mm with diameter tolerance h8
• overall length 142 mm, of which 94 mm flute length
• 118 degree point angle with standard point grind
• black surface
• tapping drill for thread G 1/4"

Fields of application

The stated application is drilling in 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 drill complies with DIN 338 in the type N version.