RUKO HSS-Co Cobalt Twist Drills 10.5 mm, Pack of 5, DIN 338.

The Ruko-215105 twist drill is a set of 5 high-precision drill bits, manufactured from cobalt alloy high-speed steel (HSS-Co 5). This material provides superior heat resistance and exceptional hardness, making them the ideal choice for drilling difficult-to-machine materials. Their design includes a tapered point grinding with a split point, conforming to DIN 1412 C, which facilitates penetration and improves drilling accuracy.

With a cutting angle of 130° and a spiral angle of 20-30°, these drill bits are designed to deliver optimal performance in a variety of industrial applications. Their golden-brown surface not only provides an aesthetic finish but also contributes to their durability.

• Diameter: Ø 10.5 mm
• Material: Cobalt alloyed high-speed steel (HSS-Co 5)
• Strength: Up to 900 N/mm²
• Cutting angle: 130º
• Spiral angle: 20-30º
• Tolerance: h8
• Surface: Golden brown
• Cutting: Right-hand
• Applications: Steel, cast steel, gray cast iron, stainless steels
• Packaging: Translucent plastic case with red background label