RUKO HSS Step Drill Bit with 3 Flutes Ø 4.0-20.0 mm (9 steps)

The Ruko-101351 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 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 is optimized for right-hand cutting, ensuring efficient and high-quality results.

CBN (Cubic Boron Nitride) grinding and spiral chip flutes ensure a clean cut, minimizing noise, vibration, and burr formation. Each step of the drill bit is radially adjusted and ground, providing increased durability and performance. The steps are laser-marked for easy identification and use.

• Drilling diameter: Ø 4.0-20.0 mm (9 steps)
• Cutting point: Split point DIN 1412 C
• Cutting angle: 118º
• Cone angle: 90º
• Right-hand cutting
• CBN ground for greater precision
• Spiral flute design
• Laser-marked steps
• Suitable for sheet metal up to 4 mm thick
• Includes translucent plastic case with hanger