Twist drill bit DIN 338 type N, HSS-R, diameter 4.5 mm, overall length 80 mm

This twist drill to DIN 338, type N, is right-hand cutting and covers everyday metal drilling with a diameter of 4.5 mm. The data give an overall length of 80 mm and a flute length of 47 mm. Grade HSS-R means a roll-formed drill made of high-performance high-speed steel with increased resistance to breakage and a ground chamfer.

Benefits

• Diameter 4.5 mm with diameter tolerance h8
• overall length 80 mm, of which 47 mm flute length
• 118 degree point angle with standard point grind
• black surface
• right-hand cutting version to DIN 338 type N

Fields of application

It is used for 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 sizes follow DIN 338 for type N.