RUKO HSS stepped drill bit Ø 4.0-12.0 mm (9 steps) for precise drilling.

The Ruko-101050-9 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 precise drilling starts. With a 118° cutting angle and a 90° taper angle, this drill bit ensures efficient and clean cutting, optimizing performance with every use.

CBN (Cubic Boron Nitride) grinding and spiral chip flutes are features that guarantee noise-free, vibration-free, and burr-free cutting, providing a more comfortable and effective working experience. Each step of the drill bit is radially adjusted and ground, ensuring maximum drilling accuracy.

• Diameter: Ø 4.0-12.0 mm (9 steps)
• Material: HSS (High-Speed Steel)
• Cutting Point: Split point DIN 1412 C
• Cutting Angle: 118º
• Cone Angle: 90º
• Cutting: Right-hand
• Capacity: Sheets up to 4 mm
• Channel Design: Spiral chip ejection
• Packaging: Translucent plastic case with hanger
• Marking: Laser marked steps