Remove debris faster and discharge particles easily
Suitable for hardness under 28° artifacts, plate thickness below 5 mm
It can be cooled with water when working, or even longer
You can use one drill for different apertures
No center punch is required. Compared with ordinary twist drills, it is not easy to break, and can be used for deburring, chamfering and opening
Recommended drilling speed is 250--400 rpm
Material: HSS6542
Tool holder type: triangular handle
Type: Spiral groove
size:
003: 9 steps from 4mm to 12mm (4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm) Handle diameter 6mm
002: 4mm to 20mm 9 steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm) handle diameter 8mm
001: 15 steps from 4mm to 32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm) handle diameter 10mm