1. Unique stepped structure, drills of various standard sizes are carved and open, and a box reaches the stepped drill.
2. Do not use center punch, easy to break, suitable for step drill specifications.
3. Deburring, chamfering, expanding oval hole
4. The swing is small, and a good aperture can be carved out without using a center punch.
Automobile processing, aerospace, sheet metal processing.
Installation and maintenance of electrical and other industries.
Use hand drills and other tools for high-altitude operations.
Material: high-speed steel
Surface treatment: Titanium
5-step drill: 4-12mm (4mm, 6mm, 8mm, 10mm, 12mm)
9-step drill: 4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm)
10-step drill: 3-12mm (3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm)
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-3mm measuring deviation due to manual measurement.
3 X Step Cone Drills
1 X Cloth Bag