Drill Bit Set Proline HSS DIN338 for Metal, 19 pcs, sizes 1–10 mm

Proline HSS DIN338 19-piece drill bit set for metal covers a wide range of small to medium diameters for precision drilling in steel and other ferrous and non-ferrous metals. Manufactured to DIN338 specifications from high-speed steel (HSS), the set includes sizes from 1 mm to 10 mm in 0.5–1 mm increments to meet common workshop and maintenance needs. The bits are intended for use in handheld drills or drill presses where accurate, clean holes in metal are required.

Advantages

The HSS material offers good heat resistance and wear performance for typical metalworking speeds, helping maintain sharp cutting edges and reducing frequent regrinding. Compliance with DIN338 ensures consistent geometry and tip angle for reliable centering and chip evacuation. A comprehensive size range from 1 mm to 10 mm reduces the need to change sets for many fabrication and repair jobs, and the organized set simplifies storage and quick selection of the right diameter.

Suitable for

• Drilling holes in steel, stainless steel, aluminum and other metals
• Workshop maintenance and mechanical repairs
• Production and light fabrication tasks
• Use with handheld electric drills and drill presses

Key specifications

• Material: High-speed steel (HSS)
• Standard: DIN338 geometry
• Number of pieces: 19
• Diameter range: 1 mm to 10 mm
• Intended materials: Ferrous and non-ferrous metals

How to use

Select the appropriate diameter for the required hole and secure the workpiece to prevent movement. Use a suitable pilot or center punch for accurate starting if needed. Install the drill bit in the chuck, ensuring it is straight and tightened. Operate at recommended speeds for HSS bits and apply steady pressure; use cutting fluid or lubricant when drilling tougher steels to extend tool life and improve chip removal. Withdraw periodically to clear chips and avoid overheating.

Usage recommendations

For best performance, match drilling speed to the material hardness and diameter: lower RPMs for larger diameters and harder steels, higher RPMs for smaller diameters and softer metals. Keep the bits lubricated when working with stainless steel or thicker sections, and store the set in its case to protect cutting edges and maintain size order.