RUKO HSS stepped drill bit Ø 4.0-30.0 mm (14 steps) for precise drilling.

The Ruko-101052 step drill bit is a high-precision tool designed for drilling sheet metal in various industries, including electrical, plumbing, heating, and automotive. Its innovative design incorporates a split point cutting edge according to DIN 1412 C, allowing for easier and more effective drilling starts. With a 118° cutting angle and a 90° taper angle, this drill bit ensures efficient and clean cutting.

The CBN (Cubic Boron Nitride) grinding and spiral chip flutes optimize the drilling process, minimizing noise, vibration, and burr formation. Each step of the drill bit is radially adjusted and ground, guaranteeing exceptional accuracy with every use.

This tool is suitable for sheet metal up to 4 mm thick and comes in a translucent plastic case with a hanger for easy storage and transport.

• Diameter: Ø 4.0-30.0 mm (14 steps)
• Cutting point: Split point DIN 1412 C
• Cutting angle: 118º
• Cone angle: 90º
• Right-hand cutting
• CBN grinding
• Spiral chip ejection channel design
• Laser-marked steps
• Suitable for sheet metal up to 4 mm thick
• Translucent plastic case with hanger