Hex shank twist drills with hex shank twist drill

8 sets of high speed steel hex shank twist drill

Size: 1.5-6.5mm

Drill stem are hexagonal, 6.35mm or one-fourth "

1. provide the following materials available for customers to choose:

A:M42 B:M35 C:6542# D:9341# E:4341# F:4241#

2. the manufacturing process:

A: b fully ground: half a mill c: roll d: forging

3. surface finish:

A: white b: Black Diamond c: white black tank drilling d sanding drill e: Titanium-coated drill f: roasted yellow diamond g: color diamonds