RUKO HSS-TiN Stepped Drill Bit Ø 4.0-20.0 mm (9 steps) for precise drilling.

The Ruko-101051T 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, minimizing the risk of burrs and vibrations during use.

CBN (Cubic Boron Nitride) grinding and spiral chip flutes optimize the drilling process, guaranteeing superior performance and quiet operation. Each step of the drill bit is radially adjusted and ground, providing greater durability and accuracy with every hole.

• Diameter: Ø 4.0-20.0 mm (9 steps)
• Material: HSS-TiN (High-speed steel with titanium nitride coating)
• Cutting angle: 118º
• Cone angle: 90º
• Cutting point: Split point DIN 1412 C
• Drilling capacity: Sheet metal up to 4 mm
• Flute design: Spiral chip ejection
• Marking: Laser-marked steps
• Packaging: Translucent plastic case with hanger