Twist drill bit DIN 338 type N, HSS-R, diameter 7 mm, overall length 109 mm

For holes with a diameter of 7 mm this right-hand cutting type N drill to DIN 338 is ready to work. The data give an overall length of 109 mm and a flute length of 69 mm. The HSS-R version is a roll-formed drill made of high-performance high-speed steel with increased resistance to breakage and a ground chamfer.

Benefits

• Diameter 7 mm with diameter tolerance h8
• overall length 109 mm, of which 69 mm flute length
• 118 degree point angle with standard point grind
• black surface
• right-hand cutting version to DIN 338 type N

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 sizes follow DIN 338 for type N.