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Why?
With the same motor power, torque and speed are inversely proportional. To reach a low torque target, the tool is geared for high rpm. When the target torque is achieved, the rotor’s inertia keeps it spinning for a short time, pushing the delivered torque above the set value—classic overshoot. This can damage the fastener or joint and shorten tool life.

How to prevent it

1. Two-step tightening strategy (Danikor’s default):
   ? Step 1 – High-speed rundown: quickly closes the gap between the screw head and the mating surface.
   ? Step 2 – Low-speed final torque: minimal inertia allows the controller to stop precisely at target torque, eliminating overshoot.

2. Real-time feedback & closed-loop control
   Danikor smart drivers use high-resolution torque sensors to sample the joint thousands of times per second; the controller trims motor current the instant the set-point is reached.

3. Periodic calibration
   Even the best sensors drift with temperature and wear. Scheduled calibration with certified equipment keeps delivered torque within specification over the tool’s lifetime.

By combining these measures, Danikor low-torque drivers routinely hold ±3 % or better accuracy while avoiding the overshoot issues common to conventional high-rpm tools.