1. Specifically designed for use in restricted spaces on small diameter, hard and soft copper, aluminium, brass and plastic tubing. 2. Rollers include grooves for close-to-flare cuts. 3. Strong, lightweight slide and wheel housing, and large knurled feed screw knob give easy control of cutting pressure for clean cuts. 4. Fits in your hand perfectly while performing a firm, non-slip clasp on tubes regardless of their shape or width.