Drill bit cassette Alpen-Maykestag Cassette Alpen HSS Super ATM 4 2-3-4-5 — HSS set 2, 3, 4, 5 mm

Cassette Alpen-Maykestag Cassette Alpen HSS Super ATM 4 2-3-4-5 is a set of high-speed steel (HSS) twist drill bits supplied in a compact plastic cassette. The set contains four metric sizes — 2 mm, 3 mm, 4 mm and 5 mm — intended for general-purpose drilling in metal, wood and plastics. The HSS material and conventional flute geometry provide a balance of hardness and toughness suited to routine workshop and maintenance tasks, while the cassette keeps the tools organized and transportable.

Advantages

The HSS composition offers wear resistance and heat tolerance compared with carbon steel bits, enabling longer life under moderate drilling speeds. Standard 118° point geometry simplifies centring and reduces the need for pilot holes in many materials. The compact cassette stores bits securely and protects flutes from damage during transport, making the set practical for both professional tradespeople and DIY users. Sizes 2–5 mm cover common small-diameter drilling needs without requiring individual purchases.

Suitable for

• Drilling holes in mild steel, aluminium and non-ferrous alloys
• Drilling in soft and hardwoods for joinery and fittings
• Making precise holes in plastic components and panels
• General workshop maintenance, repair and assembly tasks

Key specifications

• Material: High-speed steel (HSS)
• Included sizes: 2 mm, 3 mm, 4 mm, 5 mm
• Number of pieces: 4
• Point angle: Standard 118° (typical for general-purpose twist drills)
• Shank type: Cylindrical round shank suitable for standard drill chucks
• Packaging: Compact plastic cassette for storage and transport

How to use

Secure the chosen drill bit in the drill chuck and tighten it firmly. Select a drill speed appropriate for the material: lower speeds for harder metals, medium to higher speeds for wood and plastics. Use cutting lubricant or oil when drilling metal to reduce heat and prolong bit life; for wood and plastics, drilling dry is normally acceptable. Apply steady, moderate feed pressure and clear chips regularly to maintain hole quality and prevent clogging. After use, clean the bits and return them to the cassette to protect the cutting edges.

Usage recommendations

For best results when drilling steel, start with a centre punch to prevent walking and use a light coating of cutting oil. Match drill speed to material hardness and avoid excessive force to reduce wear. Store the bits in the cassette in a dry place to prevent corrosion.