New and high quality. What you get: 1 x Rivet adapter 2 x Wrench Attention: The power tool is NOT included. The rivet does NOT apply to the drill with impact function. 1cm = 0.39in = 10mm, 1in = 2.54cm = 25.4mm. 1%-3% size difference is allowed cause measured by hand. Due to the different monitors, the picture may not reflect the actual color of the item. Usage: (Pick the right size opening for your rivet, there are 4 to choose from. ) Attach the tool to cordless drill. Hold the tool, before it starts to grab the rivet, hit reverse on your drill until you feel click. The rivet can be fitted in once the teeth widen. Put the rivet in the tool and slowly hold the handy part of the tool and pull the drill trigger, when you feel it start to grab the rivet. Put it in the hole that you wish to rivet and keep holding the handy part and hit the drill at full. Once the rivet pops, keep holding the handy part of the tool and hit reverse on your drill. The teeth will widen and the old rivet shaft will drop to the ground. Put your drill back in the forward position and rinse and repeat. Details: Function: riveting Material: plastic + metal Big wrench: 13.5cm/5.35"" Small wrench: 10cm/3.94"" Working with power drill: 1.5N.m Riveting tool: 16 x 5.8cm/6.30"" x 2.28"" Nozzle size: 2.4mm, 3.2mm, 4.0mm, 4.8mm " _x000D_