Without scale, can be set with an Allen key when the cap is unscrewed using a torque tester. Torque adjustment not possible from outside; for use in repetitive production jobs, gentle and complete release of force, overtightening not possible, non-fatiguing operation thanks to short release distance, clockwise and anticlockwise release; very light, handy and accurate, with ergonomic plastic handle. Hexagon socket for bits 1/4" C6.3 + E6.3. Repeatability ±6% according to DIN EN ISO 6789, incl. factory test certificate.