WIDE COMPATIBILITY: Use the VonHaus rivet gun set for fastening a wide range of materials suitable for aluminium, steel, and stainless steel rivet nuts. Rivet nut gun comes with clear instructions. ERGONOMIC DESIGN: The labour-saving double handed design makes light work of all your material-connecting jobs. Finished with a grooved non-slip grip, the rivet gun ensures both precision and comfort. ROBUST CARRY CASE: The ultimate rivet nut gun set; the inner blow moulding keeps every rivet nut tool in place, logically and securely organised. Case measures H12 x W33 x D4cm. COMPLETE KIT: Includes flat spanner, 7 x mouthpieces (M3, M4, M5, M6, M8, M10, M12), 7 x interchangeable mandrels (M3, M4, M5, M6, M8, M10, M12), 150 x assorted rivet nuts (15 x M10, 10 x M12, 25 x each size: M3, M4, M5, M6, M8). THE VONHAUS PROMISE: All our products are backed by a minimum 2 year warranty, so you can be safe in the knowledge that if anything happens we're here for you. Use our products with confidence.