Overview

Highly stable multirange drill with outstanding heat resistance, a reinforced drill core and a parabolic flute for ideal chip removal. Ideal for drilling medium and long-chipping materials. Thanks to its thick core and the special flute with a rounded rear edge, this drill is best suited for high-performance use. It covers types N, H and W for a wide range of applications.

Diameter 1/4 inch Total length 4 inch Flute length 2 3/4 inch

Application

Steel 900 N/mm

Steel 1100 N/mm

Stainless steel

Aluminium

Brass

Plastics

Specifications

Diameter: 1/4 inch

Length: 4 Inch

Spiral Length: 2 3/4 Inch

Drilling Depth: 5 x diameter

Shaft: cylindrical

Material: HSS

Coating: uncoated

DIN: 338

Type: N

Tolerance: h8

Cutting Direction: right hand cutting

Tip Grinding: Shape U: Special ground

Groove Profile: wide with rounded rear edges

Core: very thick

Spiral Angle: 40

Point Angle: 130

Net Weight: 0.018 kg