Twist Drill Bits Bosch 2608595083 HSS Ground 5-10mm

HSS Twist Drill Bits Ground (Bosch 2608595083) are precision-engineered drill bits made from high-speed steel for reliable metal and wood drilling. The bits feature a 135° self-centring split-point tip that reduces wandering and eliminates the need for centre punching or pilot drilling up to 10 mm. Manufactured to DIN 338 with Type N flute geometry and h8 diameter tolerance, these cylindrical-shank bits are intended for use in drill stands and hand drills.

Advantages

The HSS ground design delivers up to 40% faster drilling speed and up to 50% lower feed pressure compared with standard chisel-edge HSS bits. The 135° split-point tip provides accurate centring and improved cutting action, reducing the risk of slipping. The cylindrical shank equals the drill diameter for secure mounting in standard chucks and drill stands. Suitable for a wide range of metals and hard plastics, these bits offer consistent hole quality and long-lasting sharpness thanks to their high-speed steel construction.

Suitable for

• Alloyed and non-alloyed steel
• Cast steel and cast iron
• Sintered iron and malleable cast iron
• Non-ferrous metals (e.g., aluminium, copper)
• Hard plastics

Key specifications

• Brand: Bosch
• Manufacturer part number (MPN): 2608595083
• EAN: 3165140290838
• Material: HSS (high-speed steel)
• Tip angle: 135° split-point, self-centring
• Flute type: Type N (standard flute angle)
• Shank: cylindrical (diameter = drill bit diameter)
• Standard: DIN 338
• Diameter tolerance: h8
• Range: 5–10 mm (set or assortment as per product title)

How to use

Secure the appropriate bit by diameter in the drill chuck or drill stand, ensuring the cylindrical shank seats fully. Select a suitable spindle speed and feed rate for the material: higher speeds for non-ferrous metals and lower speeds for harder steels. Apply steady feed pressure; the split-point tip reduces the need for pre-punching for holes up to 10 mm. Retract occasionally to clear chips when drilling deep holes and cool the bit if necessary when working in hard materials.