XL HSS step drill bit set 2 pcs - TiAlN coated - Helical - TSP - Three flat shank (Hanging box) / ØMin/Max : 5/22

The Tivoly XL HSS step drill bit set is designed for fast, accurate drilling of multiple hole diameters in sheet metal, thin steel, aluminium and plastics. The two professional-grade step drill bits cover diameters from 5–22 mm, making them a practical choice for installation, fabrication and maintenance work where frequent tool changes would slow the job down.

Key features:

- Product type: XL HSS step drill bit set
- Diameter range: 5–22 mm
- Number of drill bits: 2
- Cutting material: High-speed steel (HSS)
- Coating: TiAlN for improved heat resistance and service life
- Flute design: Helical flutes for efficient chip removal
- Shank: Tri-flat shank for secure chuck grip and reduced slipping
- Self-centring geometry for accurate hole positioning
- Suitаble for steels and cast irons up to 950 N/mm², sheet metal, aluminium, thin steel and plastics

Benefits:

- Creates several calibrated hole sizes with a single drill bit.
- Helical flutes support smoother cutting and help clear chips efficiently.
- TiAlN coating withstands heat generated during intensive drilling.
- Tri-flat shank improves torque transfer and helps prevent the bit from rotating in the drill chuck.
- Step-drill design reduces the need to change tools when enlarging holes.
- Suitаble for clean, controlled drilling in thin materials.

This set is intended for professional metalworkers, electricians, installers, fabricators and maintenance technicians, as well as demanding DIY users. It is well suited to drilling and enlarging holes in electrical panels, metal enclosures, ducting, sheet-metal components and plastic fittings.

SKU: 11448370001
EAN: 3221912712837