Features: 7-Piece Mandels – The rivet nut tool comes with 7pcs Metric interchangeable mandrels M3 M4 M5 M6 M8 M10 M12. All of the mabdrels are classificated by labled colorful case for easy identify and store. Easy Mounting & Release – The rivet nut tool designed with too free quick-change head for easy loading and unloading of threaded rivet nuts. Ergonimic Energy Saving Design – 11inches rivnut gun, U-shape handles and double compound hinges maximizing leverage provide 38x arm force more efficient in working. Labor saving and time saving. Sturdy & Durable – 3mm thickened carbon steel arm makes the rivet nut gun more sturdy and durable with heat-treatment finish and coating to prevent from corrosion. Scop of Application – The rivet gun kit is ideal for working in hard-to-reach areas. Suitable for metal plate, plastic piece, riveting wood, bicycle attachments, car attachments, furniture, decorations, off-road or Jeep modifications etc. Specififation: Model: KP-617 Color: Black