Twist Drill Bit Bosch HSS Cobalt 6.8 mm 1 pc

Twist Drill Bit Bosch HSS Cobalt 6.8 mm is a high-speed steel drill designed for precise and durable drilling in a range of metals. Manufactured to DIN 338 as Type N with a 135° split-point tip and h8 diameter tolerance, this 6.8 mm bit features a cylindrical shank equal to the drill diameter and is suitable for use in drill stands and hand-held drill drivers.

Advantages

The HSS cobalt construction offers extended lifetime when drilling stainless steel and other demanding materials. The two-cutters and two-flute design ensures rapid chip evacuation, reducing heat buildup and wear. The pointed split-point tip provides active cutting and accurate centring without wandering, improving hole quality and reducing the need for pilot holes.

Suitable for

• Alloyed and non-alloyed steel
• Stainless steel
• Cast iron and cast steel
• Acid- and heat-resistant steels

Key specifications

• Brand: Bosch
• Type: HSS Twist Drill Bit Cobalt
• Diameter: 6.8 mm
• Standard: DIN 338, Type N (flute angle)
• Tip angle: 135° split-point
• Diameter tolerance: h8
• Shank: cylindrical (shank diameter = drill diameter)
• Pack quantity: 1 pc
• MPN: 2608585857
• EAN: 3165140520928

How to use

Secure the drill bit in the chuck so the shank seats fully and tighten according to the drill manufacturer’s instructions. Select an appropriate speed and cutting fluid for the material being drilled—lower speeds and lubricant are recommended for stainless and heat-resistant steels. Apply steady pressure and allow the bit to cut without excessive force; withdraw periodically to clear chips when drilling deep holes.

Usage recommendations

For best results when drilling stainless or heat-resistant steels, use cutting fluid, operate at moderate speeds, and avoid overheating by using light, steady pressure and intermittent withdrawal to clear chips.