RUKO SPB-DIN338-10,4mm-HSSCo spiraalboor

Twist drill bit with 10.4 mm diameter, ground from solid HSS-Co (5% cobalt) for high-performance drilling in tough materials. The split point (Form C) with 135° point angle provides self-centering and reduces thrust, while the bright finish and DIN 338 standard ensure precision and durability.

Advantages

High-speed steel with 5% cobalt offers excellent heat resistance and wear resistance, enabling drilling in high-alloy steels, stainless steels, and other difficult-to-machine materials up to 1100 N/mm² tensile strength. The split point design eliminates walking and allows accurate hole positioning without center punching. Right-hand cutting with normal helix (Type N) ensures efficient chip evacuation in most materials.

Suitable for

• High-alloy steels
• Stainless steels
• Acid and heat resistant steels
• Cast iron
• Non-ferrous metals

Key specifications

• Diameter: 10.4 mm
• Total length: 133 mm
• Working length (flute length): 87 mm
• Shank type: cylindrical
• Point angle: 135°
• Point grind: split point (Form C)
• Helix angle: normal (Type N)
• Cutting direction: right-hand
• Tolerance: h8
• Surface finish: bright
• Standard: DIN 338
• Material: HSS-Co (5% cobalt)

Recommendations

Use with a suitable drill chuck or collet, and apply cutting fluid for extended tool life when drilling stainless or high-alloy steels. For optimal performance, select appropriate speed and feed based on material hardness.