19PCS high-speed steel twist drill drill drill iron iron box

introduction:

A set of 19 high speed steel twist drill with drill size: 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10mm

using high speed steel, high cutting speed, long service life, the characteristics of chip removal ability. The set of common specifications, is the first choice for maintenance users.

for cast iron, carbon steel, die steel and other metal materials

Note:

all set the drill can be inserted with other material surface treatment of the drill, please inquire about the price!