High-quality material: Step conical drills are made of high-speed steel and coated with titanium nitride to reduce friction heat and cool

Strong and durable

Two-flute, split-point design: The two-flute, split-point design prevents slipping, clears chips quickly and deburrs holes, with reduced pressure, faster, smoother drilling and cutting

3 step sizes: Different sizes can meet different needs, designed for precision drilling of different sizes of holes from 4 mm to 32 mm in diameter, covers different step sizes that help to drill or enlarge different holes in one drill, optimal speed and precision

Suitable for: Wide range of applications for cutting or enlarging holes in materials such as thin steel, thin metals (thickness 5 mm), wood, thin iron, plastic, aluminum, PVC, fiberglass etc.

Material: HSS steel + coated titaniumType: Drill pressQuantity: 3 pcsGold colorUsage: Applied in pistol drilling, drilling benchCut:Jaws 5 steps: 4-12 mm (4 mm, 6 mm, 8 mm, 10 mm, 12 mm)

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

15 jaws step: 4-32 mm (4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 24 mm, 26 mm, 28 mm, 30 mm, 2 mm)

Note:1

Wear safety glasses before drilling

2

Cool with water when working due to the high temperature, to extend the life of the wick and prevent clogging

3

The speed is recommended to be 250-400 RPM / Min