Feature

●High-quality material: the step drill is made of high-speed steel with high hardness, corrosion resistance and rust-proof, has a long service life.
●Deburring function: deburring holes automatically when drilling, they can drill quickly and smoothly and create clean holes in iron, steel and aluminium sheets.
●Surface treatment: nitrogen treated to increase hardness and wear resistance.
●Varieties: 14 sizes, 4-42mm (4, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42mm)
●Application: This step drill is widely used for drilling various materials from iron plates, PVC plates, insulation plates and other plates.


Description

Btstil HSS step drill bit made of high speed steel, durable and long last14 sizes: 4-42 mm (4, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42 mm). Commonly used to drill holes in a variety of materials such as steel, wood, thin iron, aluminium alloy, insulation boards, PVC panels and more.


Package Content:

1 x HSS step drill 4 - 42 mm.

Use tips:

1. When using an electric drill, please always wear safety glasses, mask and gloves.

2. Do not touch it with your hands as the drill heats up during use and there is a risk of burns.

3. It is recommended to oil the drill before each use. Please do not adjust the drilling speed too high to avoid damage to the cutting edge.

4. Please note that when using the metal plate of the product drill, the product must be filled with water for cooling. Due to the high temperature, the step drill can be easily softened. Drilling under water cooling can effectively extend the life of the drill.