Features:
- Titanium coating, reduce friction, long service life.
- Suitable for plates with hardness less than 25 degrees and less than 5 mm (such as wood, iron, carbon steel plate, etc.)
- Double spiral groove design plays the role of rapid chip removal and greatly reduces cutting resistance.
Specifications:
? Material: Titanium coated high speed steel
? Parameter:
4-12 mm 9 steps (4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm)
4-20 mm 9 steps (4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm)
4-32 mm 15 steps (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 , 32 mm)
? Hex Shank: 1/4 inch quick change
Reminder:
📣 The service life of step drill bits can be prolonged by using cutting fluid.
📣 The thickness of the plate must be thinner than the gradient of the step drill bits.
📣 It can be used with the center to assist drilling.
Package Included:
3 x Step drill bits
