RUKO HSS twist drills, 10 units, diameter 5.1 mm, DIN 338 type N.

The Ruko-214051 twist drill bit set includes 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 has a ground conical tip 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 5.1 mm
• Tolerance: h8
• Right-hand cutting
• Applications: 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
• Material strength: up to 900 N/mm²
• High concentricity and rotational accuracy
• Conical tip with split point
• Cutting angle: 118 degrees
• Spiral angle: 20-30 degrees
• Bright surface for reduced friction