RUKO LOS-HSSCo-67mm HSS-Co5 kierrepora 6,7 mm DIN 338

Twist drill bit made of high-speed steel with 5% cobalt (HSS-Co5), fully ground with a bright finish. The 135° split point ensures precise centering and reduces thrust, while the optimized flute design promotes efficient chip removal. With a diameter of 6.7 mm, overall length 109 mm, and working length 69 mm, this drill bit is suitable for drilling in stainless steel, acid-resistant steel, heat-resistant steel, alloyed and non-alloyed steel, cast iron, and non-ferrous metals.

Advantages

High cobalt content provides excellent heat resistance and high core strength, making it ideal for demanding materials. The fully ground construction and h8 tolerance ensure accurate holes and long tool life.

Suitable for

• Stainless steel
• Acid-resistant steel
• Heat-resistant steel
• Alloyed and non-alloyed steel
• Cast iron
• Non-ferrous metals

Key specifications

• Material: HSS-Co5
• Diameter: 6.7 mm
• Overall length: 109 mm
• Working length: 69 mm
• Point angle: 135°
• Shank type: Cylindrical
• Standard: DIN 338
• Cutting direction: Right-hand
• Tolerance: h8

Recommendations

Use with cutting fluid or appropriate lubrication when drilling stainless or acid-resistant steels to maximize tool life. Suitable for use in corded and cordless drills as well as drill presses.