4-12 4-20 4-32 HSS Titanium Coated Step Drill Bit Drilling Power Tools Metal High Speed Steel Wood Hole Cutter Cone Drill

4-12 4-20 4-32 HSS Titanium Coated Step Drill Bit Drilling Power Tools Metal High Speed Steel Wood Hole Cutter Cone Drill

Features:

1. A pagoda-like structure worth more than one twist drill of different specifications

2. The surface is plated with titanium, sharp and durable

3. Straight groove design: fast drilling and large chip removal

4. Firm handle: Hexagonal handle design is firm and durable

5. Real materials, widely used

Specifications:

Name: 4241 Straight Slotted Hexagonal Shank Step Drill

Surface treatment: Titanium plating

Type: Step drill

Material: High-speed steel 4241 (suitable for workpieces with a hardness below 25°, such as wooden boards, thin iron plates, etc.)

Optional Specifications:

4-12mm (5 steps: 4, 6, 8, 10, 12mm),

4-20mm (9 steps: 4, 6, 8, 10, 12, 14, 16, 18, 20mm)

4-32mm (15 steps: 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm)

3-in-1 suit: 4-12mm, 4-20mm, 4-32mm (bags)

Product Application:

suitable for drilling and reaming operations of thinner iron plates, aluminum plates, copper plates, plastic plates and other materials.