NEWACALOX 4-32MM HSS Cobalt Step Drills Nitrogen High Speed Steel Spiral for Metal Cone Drill Bit Set Triangle Shank Hole Cutter

Drill bits come in time.Cons of, all drills were scattered in the box and clasp the box broken.Drill well

length: as the picture

DIY Supplies: Electrical

Type: Core Drill Bit

Brand Name: newacalox

Material: High Speed Steel

is_customized: Yes

Use: Metal Drilling

Model Number: QST-B3

4-32MM HSS cobalt step drill set

By NEWACALOX

Features and specifications:

Features:
Unique step structure that works with most hand drills. It has titanium coating to reduce friction and heat.

Specifications:
Material: HSS M35 /HSS CO
Surface treatment: titanium coating
Hardness:>85
Step/Drilling size:
4-12X5(4-6-8-10-12mm)
4-20X9(4-6-8-10-12-14-16-18-20mm)
4-32X15(4-6-8-10-12-14-16-18-20-22-24-26-28-30-32mm)

Package Includes:
1 x Set Drill Bits (simple package or wood tool box package)