Bernstein Screwdrivers, torque & bits brochure Sida 7
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Tel. +49 (0) 2191 - 9650 - 0 TORQUE TOOLS TORQUE SCREWDRIVER 4-563 torque screwdriver 0.05 - 0.6 Nm with adapter Aluminum handle with knurling, socket hex 1/4 inch (6,35 mm) Tolerance: ± 6 %, total length 100 mm, weight 111 g 4 mm 1/4” 1/4” The torque from 0.05 to 0.6 Nm can be set to the required size using a knurled screw, the set value can then be locked. When the set torque is reached there should be an audible click and a click should be felt. If this is not the case, please readjust the small screw so that the screwdriver clicks audibly. When not in use, return the torque-screwdriver back in starting position (0 Nm). This relieves the preload and prevents premature wear. The torque screwdriver is a precision instrument. To ensure warranty, calibration must be performed regularly and is the responsibility of the owner. The recommended calibration interval is every 12 months and may be shorter depending on the application. The product is lubricated by the manufacturer for lifelong use and should not be additionally oiled. Ideally, always put it back in the box after using to keep dirt and moisture away. Never disassemble the torque screwdriver yourself. If you need to repair the torque screwdriver, please contact a qualified service station. An improper repair attempt can lead to damage to this instrument and then it no longer meets the requirements of DIN ISO 6789 and ASME 8107.300-2010. PRESET TORQUE ADAPTER Torque Adapter for 4 mm bits (5/32") Torque Adapter for 1/4 inch bits (6.35 mm) hex socket, hex drive, tolerance ±10 % hex socket, hex drive, tolerance ±10 % adapter Ø 8 mm, material stainless steel adapter Ø 12 mm, material stainless steel total length 32 mm, weight 7,5 g total length 38,3 mm, weight 21 g 22 mm 10 mm 10 mm 28,3 mm 4 mm 4 mm Art.-No. NM Kgfcm in-lb hex 4-971 0.1 1.0 0.9 4-972 0.2 2.0 4-973 0.3 3.1 1/4” 1/4” Art.-No. NM Kgfcm in-lb hex 4 mm 4-991-02 0.2 2.0 1.8 1/4“ NEW 1.8 4 mm 4-991-03 0.3 3.1 2.7 1/4“ NEW 2.7 4 mm 4-991-04 0.4 4.1 3.5 1/4“ NEW NEW 4-974 0.4 4.1 3.5 4 mm 4-991-05 0.5 5.1 4.4 1/4“ 4-975 0.5 5.1 4.4 4 mm 4-981 0.6 6.1 5.3 1/4“ 4-976 0.6 6.1 5.3 4 mm 4-982 0.9 9.2 8.0 1/4“ 4-977 0.7 7.1 6.2 4 mm 4-983 1.2 12.0 10.6 1/4“ The clicking sound indicates when the torque has been reached so that the adapter cannot be over-tightened. When loosening screws there is no turning moment unlocking takes place, so no additional release tool is required. 4-984 1.4 14.0 12.4 1/4“ 4-985 2.0 20.0 17.7 1/4“ 4-985-5 2.5 25.5 22.1 1/4“ 4-986 3.0 30.6 26.6 1/4“ Adapters are primarily suitable for manual operation. In connection with a power 4-986-5 3.5 35.7 31.0 1/4“ tool, we recommend a maximum speed of 100 rpm, with a minimum click 4-987 4.0 40.8 35.4 1/4“ NEW 4-987-5 4.5 45.9 39.8 1/4“ NEW Repetition. Higher speed possible as a custom-made product, please contact us! 4-988 5.0 51.0 44.3 1/4“ NEW 4-988-5 5.5 56.1 48.7 1/4“ NEW 7
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