RUKO HSS Self-Centering Twist Drills (Ø 4.6 mm) - Pack of 10

The Ruko-214046 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 geometry includes a tapered point 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 4.6 mm
• Diameter tolerance: h8
• Right-hand cut
• Applications: Steel, alloy and non-alloy cast steel (up to 900 N/mm²)
• Compatible with gray, malleable, and ductile iron
• Use on sintered iron, nickel silver, and graphite cast iron
• Ideal for aluminum alloys, bronze, and brass
• High concentricity and rotational accuracy
• Bright surface for reduced friction
• Self-centering design for ease of use