[3 pcs set]

[3pcs Set with bag]

Professional and durable professional tool for industrial applications
Note: Professional need to use it. Irrelevant personnel are strictly prohibited from their approach while working.
Features:
1. High speed steel, more durable.
2. Nitride is applied to reduce friction and run coolers
For pilot holes, it can automatically deburring the holes such as drilling. 3.
4. Special step stucture, you can drill holes in different sizes.
5. One step drill can be used as one box of drill bit.
Cooling water 6. Can effectively speed up to 7.5 inches (250 - 400 mm) drill bits for a variety of cutting holes made of thin steel boards, wood, thin iron, aluminum alloy, and insulation plate material to extend the life of PVC sheet, electric shock therapy.

Specifications:
Type: Spiral Step Drill Bit
Material: High-speed steel
Coating: Nitride Coated
Handle: Triangle
SCOP: Thin plate, aluminum, insulation panel, PVC panel in wood 0.4mm thick.
0.2 - 0.5 inches (4 - 12 mm); 5 levels 0.16 - 0.33 - 0.47 inches (4 - 6
0.2 - 0.8 inches (4 - 20 mm); 0.16 - 0.39 - 0.49 - 0.49 inches (4 - 6 - 8 - 10 - 12 - 14 - 16 - 18
4-32mm : 4-6-8-10-12-14-16-18-20-22-24-26-28-30-32mm 15 steps

Note
Please allow 1-3mm error due to manual measurement.
Due to differences between different monitors, the picture may not reflect the actual color of the item.

Package included:
1 Set Step Drill Bit Set