Drill bit set Proline 5772145 HSS-G 2–8 mm, 13 pieces

Drill Bit Set Proline 5772145 HSS-G 2–8 mm, 13 pieces is a metal drill bit set designed for precision drilling in metal. Bits feature a 135° point angle with chisel-edge geometry and ground cutting edges for stable penetration and reduced walking. Manufactured from high-speed steel (HSS) for improved wear resistance and enhanced strength against torsional stress.

Advantages

The set offers durable HSS construction for long service life, sharpened and ground edges for consistent cutting performance, and a 135° tip angle with adjustable lip clearance that improves centering and reduces burr formation. Increased resistance to wear and torsional loads ensures reliable operation under heavy-duty conditions.

Suitable for

• Drilling holes in various metals (steel, iron, non-ferrous metals)
• Workshop and professional metalworking tasks
• Repair, maintenance and fabrication work requiring precise metal holes

Key specifications

• Brand: Proline
• Manufacturer code (MPN): 5772145
• EAN: 5903755772145
• Material: High-speed steel (HSS)
• Point angle: 135° with ground cutting edges
• Set contents: 13 pieces — diameters 2; 2.5; 3; 3.5; 4; 4.5; 5; 5.5; 6; 6.5; 7; 7.5; 8 mm

How to use

Secure the appropriate bit in the drill chuck and clamp the workpiece to prevent movement. Mark the drilling position and, if necessary, use a center punch to improve centring. Use suitable cutting speeds and lubrication/cooling for the metal being drilled to extend bit life and improve hole quality. Apply steady pressure and allow the bit to cut without forcing; withdraw occasionally to clear chips.

Usage recommendations

For best results when drilling steel and harder alloys, use cutting fluid and moderate speed. Replace worn bits to maintain hole accuracy and reduce heat build-up. Store the set in a protective case to avoid damage to the ground cutting edges.