RUKO HSS-E Co 5 cobalt step drill Ø 4.0-20.0 mm (9 steps)

The Ruko-101051E step drill bit is designed to deliver exceptional performance in sheet metal drilling across a variety of industries, including electrical, plumbing, heating, and automotive. Its split point cutting edge, compliant with DIN 1412 C, along with a 118° cutting angle and a 90° taper angle, enables precise and efficient drilling starts. The right-hand cutting edge and CBN grinding, combined with the spiral chip flute design, ensure clean, quiet, vibration-free, and burr-free cutting, improving the quality of the finished work.

Each step of the drill bit is radially adjusted and ground using CBN technology, guaranteeing superior durability and precision. The steps are laser-marked for easy identification and use.

• Model: Ruko-101051E
• Material: HSS-E Co 5 Cobalt
• Diameter: Ø 4.0-20.0 mm (9 steps)
• Cutting point: Split point DIN 1412 C
• Cutting angle: 118º
• Cone angle: 90º
• Cutting: Right-hand
• Chip flute design: Spiral
• Capacity: Sheet metal up to 4 mm
• Includes: Translucent plastic case with hanger