Wholesale RUKO Step Drill Bit HSS Spiral Fluted With Split Point No. 1

The CBN ground and spiral flutes guarantee quiet running and high cutting performance. Especially the chip flow is optimized, so even long, non-breaking chips will be removed easily. The optimized chip flow protects the cutting edges and reduces built-up edges and cold weld marks. The cone makes it easier to withdraw the tool from the material.

Steel 900 N/mm²

Aluminium

Brass

Plastics

Material: HSS

Shaft: Bit shank

Coating: uncoated

Shaft Diameter: 6.35 mm

Size: 1

Drilling Range: 4.0 - 20.0 mm

Tolerance: work's specification

Point Angle: 118°

Cutting Direction: right hand cutting

Number of Cutting Edges: 2

Number of Steps: 9

Step Angle: 90°

Length: 81.0 mm

Size no. 1 Drilling range: 4,0 / 6,0 / 8,0 / 10,0 / 12,0 / 14,0 / 16,0 / 18,0 / 20,0 mm