Drill bit set ALPEN HSS metal spiral 6-piece cylinder shank (MPN 0000111806100)

ALPEN HSS 6-piece spiral drill bit set for metal with cylindrical shanks is engineered for reliable drilling in steel and other ferrous and non-ferrous metals. The set contains six commonly used sizes with high-speed steel (HSS) ground to a spiral geometry that balances cutting edge strength and chip evacuation. Cylindrical shanks allow secure gripping in standard chucks and enable use in both handheld drills and drill presses for general metalworking, repair and fabrication tasks.

Advantages

The HSS material provides heat resistance and wear performance suited to machining metal at moderate speeds. Spiral flute geometry promotes efficient chip removal to reduce clogging and improve hole quality. Cylindrical shanks ensure consistent concentricity in the chuck and allow quick bit changes without special adapters. The selection of six sizes covers common drilling diameters for maintenance and assembly work.

Suitable for

• Drilling holes in steel, iron and non-ferrous metals
• General metalworking and assembly tasks
• Workshop and on-site maintenance
• Use in handheld drills and drill presses

Key specifications

• Material: high-speed steel (HSS)
• Flute type: spiral (twist) geometry for chip evacuation
• Shank type: cylindrical shanks for standard chucks
• Set count: six drill bits covering standard metalworking diameters
• Intended materials: steel and a range of other metals

How to use

Select the appropriate drill diameter for the required hole and secure the bit in the drill chuck ensuring good concentricity. Use appropriate cutting speed and feed for the material being drilled; apply steady pressure without forcing the bit. For drilling thicker or harder metals, use cutting fluid to reduce heat and improve chip flow. After use, clean chips from the flutes and store the bits in a protective case to prevent damage.

Usage recommendations

Use progressive drill speeds: lower RPM for larger diameters and harder materials, higher RPM for smaller diameters and softer metals. Apply cutting fluid during longer or deep holes to extend tool life and improve surface finish. Inspect bits regularly for wear or chipping and replace when cutting performance degrades.