What should I inspect when I receive an electric screwdriver sample?

When you receive an electric screwdriver sample, inspect the torque, speed, runout, battery, motor, gearbox, bit quality, functions, appearance, and packaging before approving it for mass production.

We recommend checking:

Torque: verify each torque level and check whether the output feels consistent

Speed: confirm the RPM and whether the screwdriver runs smoothly under load

Automatic stop: make sure the screwdriver stops correctly when the torque condition is reached

Forward/reverse operation: both directions should respond quickly and consistently

Runout: check whether the installed bit wobbles during rotation

Motor and gearbox: listen for abnormal noise, grinding, vibration, or slipping

Battery: confirm voltage, capacity, runtime, charging time, and battery model

USB-C charging: check connector fit, charging indicator, cable, and charging stability

Buttons, display, and LED: verify all controls and indicators

Bit quality: check material, hardness, tip accuracy, magnetic performance, and actual screw fit

Handle and ergonomics: check size, weight, balance, grip, and overall control

Appearance: inspect color, coating, logo, scratches, gaps, and assembly quality

Accessories: confirm the correct bits, cable, extension shaft, and other included parts

Packaging: verify case layout, retail box, labels, barcode, manual, and protection

For ToolQeen multi-stage precision electric screwdriver samples, buyers should specifically verify the 0.05, 0.15, 0.25, and 0.35 N·m torque levels, together with runout, automatic stop, charging, battery performance, and bit fit.

If the sample is approved, we recommend locking it as the golden sample together with the final specification, BOM, packaging artwork, and QC requirements before mass production starts.