Drill Bit set GRAPHITE HSS DIN 338 3.5 mm, 2 pieces

Two-piece set of GRAPHITE HSS drill bits, straight-shank design with a 3.5 mm diameter manufactured to DIN 338 standard. These high-speed steel (HSS) bits are intended for drilling metal and similar materials and are suitable for use with handheld drills and drill presses for general metalworking, maintenance and repair tasks.

Advantages

The HSS material provides a balance of hardness and toughness for cutting into ferrous and non-ferrous metals. Compliance with the DIN 338 specification ensures standardized geometry and point angle for consistent hole accuracy. The straight shank allows secure clamping in standard drill chucks, and the compact two-piece set offers quick replacement or spare bit availability during routine tasks.

Suitable for

• Drilling holes in steel, aluminum and other common metals
• Maintenance and repair work with handheld drills
• Drill press operations for general metalwork
• Small fabrication and assembly tasks requiring 3.5 mm holes

Key specifications

• Diameter: 3.5 mm
• Quantity in set: 2 pieces
• Material: High-speed steel (HSS)
• Shank type: Straight shank for standard chucks
• Standard: Manufactured to DIN 338 geometry

How to use

Select the appropriate drill speed and cutting fluid for the metal being drilled, clamp the workpiece securely, and install the 3.5 mm HSS bit firmly in the drill chuck. Start drilling with steady, even pressure and avoid excessive feed to prevent bit overheating or premature wear. For repetitive or deeper holes, withdraw the bit periodically to clear chips and, if necessary, apply cutting fluid to improve chip evacuation and reduce friction.

Usage recommendations

Use medium to high spindle speeds for non-ferrous metals and moderate speeds for harder steels; apply appropriate cutting lubricant for steel to extend bit life. Inspect bits for wear or chipping before use and replace when cutting performance declines. Store in a dry place to avoid corrosion.