RUKO HSS Self-Centering Twist Drills Ø 9.7 mm - Pack of 10

The Ruko-214097 twist drill bit set is a 10-piece set of high-precision drill bits designed to deliver exceptional performance in a wide variety of materials. Manufactured to DIN 338 type N standards, these milled and ground drill bits ensure high concentricity and rotational accuracy, making them an indispensable tool for professionals and DIY enthusiasts. Their design includes a tapered tip with a split point, conforming to DIN 1412 C, which facilitates penetration into the material and reduces initial slippage.

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

• Diameter: Ø 9.7 mm
• Diameter tolerance: h8
• Compatible materials: steel, cast steel, gray cast iron, malleable cast iron, ductile iron, die-cast iron, sintered iron, nickel silver, graphite cast iron, aluminum alloys, bronze, and brass
• Maximum material strength: up to 900 N/mm²
• Cutting angle: 118 degrees
• Spiral angle: 20-30 degrees
• Surface: bright
• Cutting: right-hand
• Type: helical, DIN 338 type N
• Pack: 10 units