Punta elicoidale RUKO SPB-DIN338-HSSCo8-Ø9,7mm HSS-Co 8% cobalto, 9,7 mm, DIN 338, punta a split point, 135°

Drilling into tough, high-alloy steels or stainless steel quickly dulls ordinary bits, causing wandering, overheating, and poor hole quality. This RUKO twist drill bit is built from HSS-Co 8% cobalt high-speed steel, fully ground to DIN 338, to stay sharp and accurate under demanding industrial workloads.

Who is it for

Professional machinists, metalworkers, and maintenance technicians who need a reliable 9.7 mm drill bit for high-alloy steels, stainless steel, cast iron, bronze, hard plastics, and non-ferrous metals.

Main features

• HSS-Co 8% cobalt alloy for very high heat and wear resistance
• DIN 338 standard with 133 mm overall length and 87 mm flute length
• 135° split point for fast centering and reduced walking
• Cylindrical shank, right-hand cutting, bright finish
• Fully ground for precision and consistent performance

Specifications

• Drill bit type: Twist drill bit
• Diameter: 9.7 mm
• Material: HSS-Co 8% (high-speed steel with 8% cobalt)
• Standard: DIN 338
• Point angle: 135°
• Point grind: Split point
• Shank type: Cylindrical
• Cutting direction: Right-hand cutting
• Surface finish: Bright
• Overall length: 133 mm
• Flute length: 87 mm
• Tolerance: h8
• Manufacturing process: Fully ground

Tips

Use cutting fluid when drilling stainless or high-alloy steels to extend tool life. For best results, pre-drill with a smaller diameter when working with very hard materials.