RUKO HSS self-centering twist drills, Ø 7.9 mm, pack of 10 units.

The Ruko-214079 twist drill bit set comprises 10 high-precision drill bits designed to deliver exceptional performance in a wide variety of materials. Manufactured to DIN 338 standards, these milled and ground drill bits feature a self-centering design that ensures high concentricity and rotational accuracy, making them an indispensable tool for professionals and DIY enthusiasts.

The drill bit features 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 and clean cutting.

• Diameter: Ø 7.9 mm
• Tolerance: h8
• Cutting: right-hand
• 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 Strength: up to 900 N/mm²
• Applications: general-purpose drilling in common materials
• Finish: bright surface
• Type: helical
• Standards: DIN 338 and DIN 1412 C