Product Name: 6-60mm HSS Spiral Groove Step Drill Bit
Material: 4241 High Speed Steel
Number of Steps: 12 (6, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60mm)
Shank Diameter: 12.5mm (1/2”)
Recommended Rotation Speed: 250-400 RPM
Item Size: 6.5 x 6.5 x 10.5cm/2.56” x 2.56” x 4.13”
Item Weight: 598g/1.32lbs
Package Includes:
1 x Step Drill Bit