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 Controlled screw tightening in the most common range of 20 - 850 N·m / 15 - 630 lbf·ft (guide for screws M7-10.9 to M24-8.8, M30-5.6) 
 Adjustable, releasing and sturdy tubular torque wrench with integrated ratchet and with square drive for industry and the trades Features: 
 Classified to DIN EN ISO 6789:2003 Type II Class A, with a factory certificate allowing for operations to be traced back. Calibrated to a permitted +/- 3 % deviation and better. The specifications of the standard (+/- 4 %) are exceeded. 
 For controlled bi-directional tightening DMUK only for controlled clockwise-tightening 
 Models DMK: 1/2" mushroom head interchangeable square with push-button releasing and a ball-locking mechanism. From Model No. DMK 400 with 3/4" push-through square and a pin-locking mechanism 
 Models DMUK: With 1/2" reversible ratchet 
 Sturdy, satin chrome-plated tubular steel construction, with chrome-plated ratchet head and top-grade plastic parts 
 Ergonomically shaped, 2-component plastic grip with calibration aid 
 Change-over between N·m main scale and lbf·ft ancillary scale to avoid reading errors when setting the torque wanted 
 With micrometre scale for main N·m scale for setting interim values 
 Release system triggers a tactile and audible signal 
 Ergonomic system for torque adjustment with reference symbol 
 Fast adjustment provision 
 Secured adjusting/setting system 
 Patent applied