RUKO HSS Self-Centering Twist Drills Ø 7.1 mm - Pack of 10

The Ruko-214071 twist drill bit set is a 10-piece set of high-performance drill bits designed to deliver exceptional performance in a wide variety of common materials. These drill bits are ideal for use in all types of drills, ensuring high concentricity and rotational accuracy, resulting in clean and precise holes. Their design includes a tapered point grinding with a split point, conforming to DIN 1412 C, which facilitates penetration into the material and reduces slippage.

With a cutting angle of 118 degrees and a spiral angle of 20-30 degrees, these drill bits are optimized for efficient cutting. The bright surface not only enhances durability but also minimizes friction during use.

• Diameter: Ø 7.1 mm
• Tolerance: h8
• Material: HSS milled-ground
• Cutting angle: 118 degrees
• Spiral angle: 20-30 degrees
• Surface: Bright
• Cutting: Right-hand
• Applications: Steel, gray cast iron, malleable cast iron, ductile iron, sintered iron, aluminum alloys, bronze, and brass
• Maximum strength: Up to 900 N/mm²