Torque Adapter 0.7 Nm for C4 Bits, 4 mm Hex, ±10% Tolerance - Bernstein 4-977

Fastening delicate components in electronics assembly demands exact torque control to protect both the part and the connection. The Bernstein 4-977 torque adapter is factory preset to 0.7 Nm and turns any standard holding tool with a 4 mm C4 bit into a precise torque tool.

Advantages

• Preset tightening torque of 0.7 Nm with ±10% tolerance for at least 20,000 clicks
• Audible click signals when torque is reached, overtightening is impossible
• No torque release when loosening thanks to the locked core shaft, giving 30% higher loosening torque without extra tools
• Compact design with an 8 mm adapter diameter and 32 mm overall length for tight spaces
• Factory certificate available on request for quality assurance

Technical Data

Application

The adapter is designed for manual use at the workbench as well as in quick-change systems and robotic stations. When used with power tools, Bernstein recommends a maximum speed of 100 rpm with minimal click repetition, typical fields include electronics assembly, aerospace, and medical technology.

Standards and Delivery Data

• Tested to DIN EN ISO 6789 for manually operated torque screwdriving tools
• EAN 4250838529860
• Customs tariff number 82041100
• Country of origin Taiwan