material: M35,M2,W9,W4,and 4241#,
surface finish:bright,titanium coated,black&bright finish,amber,amber&black,amber&bright.
manufacture process: fully ground,half ground,roll forged
point angle: 135,118,130,multifork,
double ended drills are drills can be used by two times , and different market likes different
color,about the point angle,multifork point can increase drill's quality too much ,
|
|
|
|
Product Image
|
