RUKO HSS Step Drill Bit with 3 Flutes Ø 4.0-12.0 mm (9 steps)

The Ruko-101350-9 step drill bit is a high-precision tool designed for sheet metal drilling in various industries, including electrical, plumbing, heating, and automotive. Its innovative design and high-quality construction make it an ideal choice for jobs requiring clean and efficient cutting.

This drill bit features a split point cutting edge compliant with DIN 1412 C, with a 118° cutting angle and a 90° taper angle, enabling optimized right-hand cutting. Thanks to CBN grinding and spiral chip flutes, noise-, vibration-, and burr-free cutting is guaranteed, improving the user experience and the quality of the finish.

Each step of the drill bit is radially adjusted and CBN ground, with laser-marked steps for easy identification. It is suitable for sheet metal up to 4 mm thick and is particularly effective on aluminum and soft metals.

• Diameter: Ø 4.0-12.0 mm (9 steps)
• Cutting point: Split point DIN 1412 C
• Cutting angle: 118º
• Cone angle: 90º
• Right-hand cutting
• CBN grinding
• Spiral chip ejection channels
• Laser-marked steps
• Suitable for sheet metal up to 4 mm thick
• Translucent plastic case with hanger