discount 70% in 2018-09-21 to 2018-09-23
price: USD$ 15.40
freight :USD$7.00,(Postal parcel)
Search Similar or mail to saler or send message to saler
Name：Special spiral groove machine tap M3-M8
Texture of material：HSS high speed steel 6542
Characteristics and application methods:Suitable for machining screw thread blind hole, experience tells us: the processing of black metal, spiral angle selected smaller, generally at about 30 degrees, ensure the spiral tooth strength. Processing non-ferrous metals, spiral angle election of a larger point, can be about 45 degrees, cutting a bit sharp.