The dynamometric key is a precise measuring instrument of the moment of strength It is used to twist threaded fasteners so that the moment of connection is known and suitable for the type of material and the strength of the screw and nuts The key consists of a head with a square mandrel and arm transferring strength The head is used to attach hexagonal caps Comparative statement of moments in various units of length and force: 1 kg*cm = 13. 887 OZ*in (ounce X inch) 1 kg*cm = 0. 867 LB*in (Punish X inch) 1 kg*m = 9, 80665 n*m ( Niuton x meter) 1 kg*m = 7, 233 lb*ft (pound x foot) 1 ft*lb = 12 lb*in (pound x inch) 1 dm*n = 14, 16 oz*in (ounce x inch)
