RUKO HSS Self-Centering Twist Drills Ø 8.5 mm - Pack of 10

The Ruko-214085 twist drill is a set of 10 high-performance drill bits designed to deliver exceptional performance in all types of drilling and a wide variety of common materials. Their high-speed steel (HSS) construction ensures high concentricity and rotational accuracy, resulting in clean and precise holes. The tapered point grinding with a split point, conforming to DIN 1412 C, allows for more efficient cutting starts and reduces slippage on the material surface.

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

• Material: HSS milled-ground
• Diameter: Ø 8.5 mm
• Cutting angle: 118 degrees
• Spiral angle: 20-30 degrees
• Diameter tolerance: h8
• Surface: Bright
• Cutting: Right-hand
• Applications: Steel, gray cast iron, aluminum alloys, bronze, and brass
• Maximum strength: Up to 900 N/mm²
• Pack: 10 units