[4～20mm]

[3〜12mm]

[4〜12mm]

Description:

- Durability: This is to make precise drills easy without wear out after repeated use.
- Easy to Drill: Through the surface depth gauge, drilling is very accurate and accurate. Quickly removes shavings and deburring holes. The pressure is less and the drill and cutting is faster and smoother. It generates high temperature and requires additional water or coolant to cool the drill bit.
- Top Quality Material: This step drill bit is made of high speed steel material, with high abrasion resistance, high toughness and high strength flexibility. Titanium coating for abrasion and heat resistance makes it durable and long lasting.
- Compatible with: electric drills, hand drills, bench drills, etc. The larger the diameter of the hole you wish to drill the slower the speed of the electric drill and the recommended rotation speed is within 1000 RPM.
- Wide application: This drill bit is used for cutting thin iron plates, aluminum materials, thin iron, wood and copper plates. Thickness is within 5mm. Not suitable for carbon steel, stainless steel and ceramic. Note: Please use the specified plate to avoid damage to the drill.



Size Chart:

3-12mm Total Length: 6.7cm/2.64" Diameter: 4.7cm/1.85"
4-12mm Total Length: 7.2cm/2.83" Diameter: 4.2cm/1.65"
4-20mm Total Length: 7.4cm/2.91" Diameter: 4.8cm/1.89"



Package Includes:

1 Straight Grooved Step Drill Bit



Note:

Due to manual measurement, please allow 0.04 - 0.12 inch (1 - 3 mm) measurement deviation.
The actual color may vary slightly from the color shown in the picture due to different monitor and light effect. Thank you!