3PCS Step Drill Bits Set HSS Tin-Coated Cone Hole Cutter 4-12/20/32mm+Blue Box

Feature:

- A set of 3 jobs for all sizes.

- 2 groove edges for faster, smoother cuts.

- A triangular handle prevents the collet from slipping.

- Surface treatment: titanium plating.

- Ideal for cutting holes in a variety of materials, including steel, brass, wood, plastic, etc.

Specification:

- Material: HSS steel.

- The lengths are 104.5 mm (15 steps), 74 mm (9 steps), and 67 mm (5 steps)

The 3 knives have the following dimensions:

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

* 4 - 20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm)

* 4 - 12 mm (4 mm, 6 mm, 8 mm, 10 mm, 12 mm)

Package Content:

1pcs 4-12mm

1pcs  4-20mm

1pcs  4-32 mm