Drill bits Bosch 2609255034, 2 pcs — HSS 1 mm diameter, 34 mm length

Drill bits Bosch 2609255034, 2 pcs — HSS 1 mm diameter, 34 mm length. Precision-ground right-hand twist drill bits made of high-speed steel (HSS), manufactured from solid material for consistent concentricity and a high drilling rate. Each bit has a 1 mm cutting diameter and a 34 mm overall length. The set contains two identical bits suitable for drilling in metals and hard plastics; coolant is recommended to extend tool life and improve cutting performance.

Advantages

High-speed steel construction provides toughness and heat resistance for metalworking tasks. Precision grinding from solid HSS ensures accurate, straight holes and consistent cutting performance. The small 1 mm diameter is suitable for fine, precise drilling operations and applications that require minimal hole size. Supplied as a two-piece set to provide a spare bit for continued work or replacement.

Suitable for

• Drilling thin, precise holes in alloyed and non-alloyed steels
• Drilling in iron, cast iron and cast steel
• Drilling non-ferrous metals (e.g., brass, aluminum)
• Drilling hard plastics and small-scale model or electronics work

Key specifications

• Material: high-speed steel (HSS), ground from solid
• Cutting direction: right-hand twist
• Diameter: 1 mm
• Overall length: 34 mm
• Quantity: 2 pieces per pack
• Typical applications: metalworking and hard plastic drilling

How to use

Secure the workpiece and clamp the drill bit properly in the drill chuck. Use appropriate spindle speed and feed for a 1 mm HSS bit and the material being drilled—lower speeds for harder steels, higher speeds for non-ferrous metals and plastics. Apply steady, even pressure and withdraw the bit occasionally to clear chips. Use cutting fluid or coolant when drilling metals to reduce heat, improve chip evacuation and prolong bit life.

Usage recommendations

For best results, pre-center with a punch for exact hole positioning when needed; use coolant for metal drilling and moderate speeds for plastics to avoid melting. Replace the bit if wear or chipping appears to maintain hole quality.