Gedore Torque screwdriver no longer required, used no more than 5 times on very light precision work. Almost no marks at all and as close to unused as it is possible to be. Very high quality tool and is perfect for precision manufacturing or hobbyists. Controlled screw tightening in the range of 1.2 – 6 Nm. High-speed, controlled tightening enables serial production. Electrical and electronic hardware industry, instrument-making industry and industrial manufacturing or in quality control. 1/4″ female hexagon drive for use with 1/4″hexagon bits as per DIN 3126 – C 6.3. Working accuracy: +/- 6 % tolerance of set torque. To DIN EN ISO 6789, traceable to national standards. Precision radial ball clutch and cam design for controlledbi-directional tightening. Precision mechanism slips very noticeably when the pre-setvalue is achieved. Automatic resetting to the starting position. 3 models ranging from 0.2 Nm to 9 Nm, with additional modelsavailable in lbf·in and ozf·in. Micrometre scale graduation: 1 cNm resp. Lightweight construction by virtue of anodised aluminumhandgrips. If there are any questions please do not hesitate to ask, I will be happy to answer.