Use: Controlled screw tightening in the range of 4 - 9 Nm, High-speed, controlled tightening enables serial production, Electrical and electronic hardware industry, instrument-making industry and industrial manufacturing or in quality control, Features: Adjustable torque screwdriver - with scale, With 1/4" female hexagon drive for use with 1/4" hexagon bits as per DIN 3126 - C 6.3, With adaptor also suitable for 1/4" square drive sockets as per DIN 3124, Working accuracy: +/- 6 % tolerance of set torque, Acc. to DIN EN ISO 6789, traceable to national standards, Precision radial ball clutch and cam design for controlled bi-directional tightening, Precision mechanism slips very noticeably when the pre-set value is achieved, Automatic resetting to the starting position, 3 models in the range 0,2 NB7m to 9 NB7m, Micrometre scale graduation: 1 cNm resp. 0,1 Nm, Lightweight construction by virtue of anodised aluminium handgrips, Scope of delivery: Torque screwdriver Typ 757, 1/4" square/hexagon drive adaptor (No. 757-20), Models 757-06/-09 with additional sliding T-bar for ease of use, Test certificate acc. to DIN EN ISO 6789, Delivery in sturdy cardboard packaging