RUKO SPB-DIN338-5,1 mm broca helicoidal HSSCo

Twist drill bit with 5.1 mm diameter, made from high-speed steel with 5% cobalt for exceptional hardness and heat resistance. Fully ground with a 130° point angle for precise centering and efficient chip removal in tough materials.

Advantages

High cobalt content extends tool life and maintains cutting performance at elevated temperatures. Bright finish reduces friction and improves chip flow. Cylindrical shank with h8 tolerance ensures secure clamping in standard drill chucks.

Suitable for

• Alloyed and unalloyed steel up to 1100 N/mm² tensile strength
• Stainless steel
• Cast iron
• Non-ferrous metals

Key specifications

• Drill bit type: Twist drill bit
• Material: HSS-Co (5% cobalt)
• Standard: DIN 338
• Diameter: 5.1 mm
• Overall length: 86 mm
• Working length: 52 mm
• Point angle: 130°
• Shank type: Cylindrical
• Cutting direction: Right-hand
• Manufacturing process: Fully ground
• Tolerance: h8

Recommendations

Use cutting fluid or coolant when drilling stainless steel or high-strength alloys to maximize tool life. Suitable for general purpose drilling in abrasive materials.