For bending brass, copper, aluminum and brake line tubing up to 360 Degree * Heavy duty tubing bender has four grooves for 3/16-Inch (5 mm), 1/4-Inch (6 mm), 5/16-Inch (8 mm), and 3/8-Inch (9 mm) tubing * Comfort grip handle * The right tool makes the job easier * Quality product by Powerbuilt