How is incoming quality control performed for screwdriver production?

Incoming quality control (IQC) for screwdriver production is performed by checking key materials and components before they are released to the assembly line.

We recommend inspecting:

Screwdriver bits: material, hardness, dimensions, tip accuracy, coating, and magnetic performance

Motor: speed, current, noise, vibration, and basic operating performance

Gearbox: gear condition, backlash, noise, lubrication, and output stability

Battery: model, voltage, capacity, internal resistance, appearance, and protection circuit

PCB: component version, soldering quality, firmware, buttons, display, LED, and control functions

Plastic and metal parts: dimensions, color, surface finish, deformation, scratches, and assembly fit

Bearings and shafts: dimensions, rotation smoothness, runout, and abnormal noise

USB-C ports and cables: connector fit, charging performance, and electrical continuity

Magnets and bit holders: retention force and assembly position

Packaging materials: printing, color, dimensions, inserts, labels, and barcode accuracy

IQC should compare incoming materials with the approved drawing, specification, BOM, golden sample, and supplier standard.

Critical components such as the battery, motor, gearbox, PCB, and precision bits should receive stricter inspection because changes in these parts can directly affect torque, speed, durability, charging, and product safety.

For ToolQeen electric screwdriver production, incoming inspection is normally followed by in-process quality control, functional testing, aging, torque verification, and pre-shipment inspection, so quality is controlled from component receipt through final shipment.