This Stanway by Zenten Tube Cutter is perfect for cutting thin walled metal tubes with a min diameter of 3mm and a max diameter of 25mm. This cutter is resistant; threading of feed screw on steel socket. Its ICS-System (Instant Change System) requires no tools for instant wheel change. Features an ergonomic knob for comfort. This cutter also has extra reduced radius spin. Suitable for all trades people and the serious DIY users.