RUKO SPB-DIN338-5,25mm-HSSCo Punta elicoidale HSS-Co, 5% cobalto, DIN 338, 5,25 mm

Twist drill bit with 5% cobalt alloyed HSS-Co for high heat resistance and wear resistance. Fully ground with split point for precise centering and reduced thrust. Suitable for stainless steel, acid-resistant steel, heat-resistant steel, alloyed and unalloyed steels, cast iron, non-ferrous metals, and plastics up to 1100 N/mm².

Advantages

High cobalt content ensures excellent hot hardness and durability. Split point geometry provides accurate starting without center punch. Bright surface finish reduces chip adhesion.

Suitable for

• Stainless steel
• Acid-resistant steel
• Heat-resistant steel
• Alloyed and unalloyed steels
• Cast iron
• Non-ferrous metals
• Plastics

Key specifications

• Material: HSS-Co (5% cobalt)
• Standard: DIN 338
• Diameter: 5.25 mm
• Point angle: 135°
• Point grind: Split point
• Cutting direction: Right-hand cutting
• Manufacturing process: Fully ground
• Surface finish: Bright
• Total length: 91 mm
• Working length: 57 mm
• Shank type: Cylindrical
• Recommended material hardness: Up to 1100 N/mm²

Recommendations

Use with cutting fluid for stainless steel to extend tool life. Suitable for industrial drilling and workshop use.