Set of twist drills HSS-G 19-25 pcs, according to DIN 338 type N

Twist drill, made of cobalt alloyed HSS, acc. to DIN 338, fully ground from the solid. Fitted with a special spiral for good chip removal and greasing materials. Crosswise sharpened acc. to DIN 1412C, point angle 135°, tolerance of diameter h8

One-piece twist drill bit, fully ground from the solid, long version with hexagonal shank for bit holder (1/4“; E 6,3), polished section of the surface of the cone 118°, blank ground

Special twist drill made of cobalt alloyed HSS, acc. to DIN 1869, fully ground of the solid, extra long version, right hand cutting. Profile crosswise sharpened 135°

Twist drill made of HSS, fully ground from the solid, long version, cylindrical, special spiral for good chip removal when drilling deep holes and for greasing materials. Profile crosswise sharpened acc. to DIN 1412C, point angle 135°. Tolerance of diameter h8

Twist drill made of cobalt alloyed HSS-G, acc. to DIN 340, fully ground from the solid, long version, special spiral form, for a good chip removal when drilling deep holes and for greasing materials. Crosswise sharpened acc to. DIN 1412C, point angle 135°, tolerance of diameter h8