ALPEN-MAYKESTAG Alpen TSS 3 LL 5-6-8 sada stupňovitých vrtákov 3-dielna HSS TiN

The ALPEN-MAYKESTAG Alpen TSS 3 LL 5-6-8 is a professional 3-piece step drill set designed for precise and efficient drilling in sheet metal, non-ferrous metals, and plastics. Manufactured from high-speed steel (HSS) with a titanium nitride (TiN) coating, these drills offer extended tool life and reduced friction. Each drill features a self-centering tip for accurate starts and a cylindrical shank with 3-flat drive for secure chuck grip. The set includes drills covering diameter ranges 5-16 mm, 6-20 mm, and 8-30 mm, with step increments of 1 mm or 2 mm as specified. Supplied in a durable plastic case for safe storage and transport.

Advantages

High-speed steel construction with TiN coating ensures durability and heat resistance. Self-centering tips eliminate the need for pilot holes, increasing productivity. The 3-flat drive shank prevents slipping in the chuck. Step increments allow for multiple hole sizes with a single tool, reducing tool changes.

Suitable for

• Sheet metal up to 4 mm thickness
• Non-ferrous metals (aluminum, copper, brass)
• Plastics and composite materials
• Electrical enclosures, automotive panels, HVAC ductwork

Key specifications

• Product Type: Step Drill Set
• Number of Pieces: 3
• Drill Material: HSS (High-Speed Steel)
• Coating: TiN (Titanium Nitride)
• Drill 1 Diameter Range: 5-16 mm (1 mm steps)
• Drill 2 Diameter Range: 6-20 mm (1 mm steps)
• Drill 3 Diameter Range: 8-30 mm (2 mm steps)
• Shank Type: Cylindrical with 3-flat drive
• Shank Diameters: 6 mm, 8 mm, 10 mm
• Self-Centering Tip: Yes
• Recommended Material Thickness: Up to 4 mm
• Packaging: Plastic Case

Recommendations

For best results, use at moderate speeds with light pressure. Lubrication recommended for metal drilling. Always wear appropriate safety gear.