THREE MULTI-PURPOSE BLADES – All blades are sharp for smooth, fast sawing: 1. [Pruning blade – black coated surface]: 5TPI, 65Mn, Length 190 mm (7.5 inch), for 70 mm branches; 2. [Hardwood/Plastic blade – gray surface]: 11TPI, 65Mn, Length 190 mm (7.5 inch), for 5 mm plastic pipe or 120 mm hardwood; 3. [Metal blade – polished coated surface]: 18TPI, 58CrV, Length 190 mm (7.5 inch), for 1 mm copper pipe or 1.5 mm aluminium pipe