Sutton Tools 4-25mm HSS-TiAlN Supa Step Drill, 11 Steps, Spiral Flute

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Description & Specs

The Sutton Tools 4-25mm Supa step drill bores a range of hole sizes with a single bit, stepping from 4mm up to 25mm across 11 steps. Made from high-speed steel with a TiAlN coating and a spiral flute, it is built for clean, controlled holes in sheet metal, aluminium, plastic and fibreglass.

  • Range: 4-25mm
  • Steps: 11
  • Material: HSS-TiAlN (titanium aluminium nitride coated high-speed steel)
  • Flute: Spiral flute

The spiral flute helps clear swarf for smoother cutting, while the TiAlN coating adds wear resistance for longer life on tougher work. A capable step drill for sheet-metal, panel and fabrication jobs where you need accurate, deburred holes across a wide size range.

More about this product

The Sutton Tools 4-25mm 11 Step HSS-TiAlN Spiral Flute Supa Step Drill is a high-performance drilling tool designed for precision and durability. Made from high-speed steel with a TiAlN coating, it is suited to sheet metal, aluminium, plastic and fibreglass, producing clean, deburred holes. The spiral flute aids swarf clearance.

  • 4-25mm range, 11 steps
  • HSS-TiAlN coated
  • Spiral flute design
  • For sheet metal, aluminium, plastic and fibreglass

Questions & Answers

What hole sizes does the Sutton Supa step drill cover?

It steps from 4mm up to 25mm across 11 steps.

What materials is it designed for?

It is designed for sheet metal, aluminium, plastic and fibreglass.

What is the TiAlN coating for?

The titanium aluminium nitride (TiAlN) coating adds wear resistance, helping the high-speed steel drill last longer on tougher work.

What does the spiral flute do?

The spiral flute helps clear swarf as you drill, giving smoother, more controlled cutting.

Shipping & Returns

Standard Shipping Australia-wide
Dispatches within 1-2 business days from our Australian warehouses
14-Day Change-of-Mind Returns
Change of mind? Eligible products can be returned within 14 days of delivery if unopened, unused and in original packaging. Return postage and restocking fees may apply. This does not affect your Australian Consumer Law rights for faulty products.