| 1 |
Applicable Standards and Technical File |
Incorrect safety design or incomplete market documentation may prevent lawful sale in the destination market. |
Review the product specification, risk assessment, user instructions, drawings, test reports, and declaration documents before mass production. |
Documents identify the correct model, rated voltage, frequency, power input, accessories, intended use, foreseeable misuse, and target-market requirements. |
Risk assessment based on ISO 12100 principles; applicable electrical and machinery safety test reports; signed declaration where required; controlled technical drawings. |
High |
Required |
| 2 |
Housing, Guarding, and Moving Parts |
Cracks, sharp edges, loose covers, or inadequate guarding can expose users to rotating parts or fragments. |
Perform 100% visual inspection during assembly and final inspection. Check housing fit, guard attachment, trigger area, ventilation openings, and edge finishing. |
No cracks, exposed live parts, accessible hazardous rotating components, sharp edges, loose screws, or missing protective covers. Guarding must remain secure during normal operation. |
Inspection checklist, approved housing samples, torque records for safety-related fasteners, and photographs of critical assembly points. |
High |
Required |
| 3 |
Electrical Insulation and Dielectric Strength |
Insulation breakdown, poor wiring, or inadequate creepage and clearance may cause electric shock or fire. |
Conduct production-line electrical safety tests using calibrated equipment. Test insulation, protective continuity where applicable, polarity, and dielectric strength according to the applicable product standard. |
All tested units pass the limits specified by the applicable IEC or national standard and the approved product specification. No arcing, breakdown, abnormal leakage, or exposed conductor is permitted. |
Calibration certificates, electrical safety test logs, wiring inspection records, and nonconformity reports. |
High |
Required |
| 4 |
Power Cord, Plug, and Strain Relief |
Incorrect plug configuration, damaged insulation, weak strain relief, or cable detachment can create shock and fire hazards. |
Check 100% of cords and plugs for correct market configuration, marking, insulation condition, conductor termination, and strain-relief engagement. Perform flexing or pull testing according to the applicable standard. |
Cord type, plug, voltage, and frequency match the purchase specification and destination market. No exposed conductor, loose terminal, insulation cut, or cable movement at the entry point. |
Cord and plug certificates, terminal-torque records, strain-relief test results, and lot traceability for electrical components. |
High |
Required |
| 5 |
Switch, Trigger, and Lock-Off Function |
A sticking switch or unintended restart may cause unexpected tool movement and injury. |
Operate the switch and lock-off mechanism on every production sample selected for final inspection. Check startup, release, reset, and restart behavior after power interruption. |
Tool starts only through the intended control action, stops when the control is released, and does not restart unexpectedly after power is restored where the applicable standard requires restart prevention. |
Functional test records, switch component specifications, endurance-test results, and approved control-panel samples. |
High |
Required |
| 6 |
Spindle, Collet, Chuck, and Accessory Retention |
Runout, incorrect clamping, or accessory release can cause vibration, ejection, or loss of control. |
Measure spindle runout using a calibrated gauge. Verify collet or chuck dimensions, tightening function, thread condition, accessory retention, and compatibility with specified accessories. |
Runout, clamping force, thread dimensions, and accessory compatibility meet the approved drawing or specification. No slipping, abnormal vibration, binding, or ejection occurs during the defined functional test. |
Dimensional inspection records, gauge calibration certificates, material certificates for critical spindle parts, and retention-test data. |
High |
Required |
| 7 |
Speed Control and Overspeed Protection |
Excessive speed can exceed the rated speed of an accessory and cause breakage or fragment ejection. |
Measure no-load speed at each control setting with a calibrated tachometer. Verify speed control response, maximum speed limitation, and protection against abnormal speed where specified. |
Measured speed remains within the approved tolerance and does not exceed the rated limit of the tool or compatible accessory. No unstable speed, unexpected acceleration, or control dead zone is observed. |
Tachometer calibration record, speed-test log, motor controller specification, and verification of accessory maximum-rated speed. |
High |
Required |
| 8 |
Motor, Bearings, Noise, and Vibration |
Poor balancing, defective bearings, or motor overheating may reduce control and create premature failure or fire risk. |
Run representative samples under the defined no-load and load conditions. Record current, temperature rise, noise, vibration, and abnormal sound. Inspect bearings and rotor balance during process audits. |
Current, temperature, noise, vibration, and operating time remain within the approved product specification. No smoke, burning odor, bearing roughness, excessive heat, or abnormal noise is allowed. |
Performance test records, thermal test data, vibration or noise measurements, motor supplier records, and corrective-action reports. |
Medium |
Required |
| 9 |
Battery Pack and Charger Safety |
Incorrect cells, poor welds, overcharging, short circuits, or damaged battery housings may cause overheating or fire. |
For cordless models, verify cell identification, polarity, pack assembly, protection circuit, charger output, connector fit, and abnormal charging behavior. Inspect battery packs for swelling, damage, and leakage. |
Battery voltage, capacity, charging behavior, protection functions, and connector configuration match the approved specification. No overheating, venting, swelling, leakage, or charging fault is permitted. |
Battery safety test reports, transport test documentation where applicable, cell traceability, charger test records, and battery protection-circuit records. |
High |
Required |
| 10 |
Thermal Protection and Fire Resistance |
Overload, blocked ventilation, or unsuitable polymer materials can cause overheating, melting, or fire. |
Verify thermal cut-off or protection devices. Conduct overload and blocked-ventilation tests when required by the applicable standard. Inspect polymer parts and internal clearances. |
Protection operates within the approved limit and prevents hazardous overheating. No ignition, sustained flaming, dangerous deformation, or loss of electrical insulation occurs during the specified test. |
Thermal test report, protection-device specification, polymer material documentation, and production test records. |
High |
Required |
| 11 |
Labels, Ratings, and User Instructions |
Missing or inaccurate warnings may result in incorrect voltage selection, unsafe accessory use, or inadequate personal protection. |
Compare labels, rating plates, symbols, warnings, manuals, and packaging against the approved artwork and destination-market requirements. |
Voltage, frequency, power, speed, model identification, warnings, safety symbols, disposal information, and required languages are legible, permanent, and consistent across the product and documents. |
Approved artwork, translation review, label adhesion or permanency test, instruction manual, and packaging inspection record. |
Medium |
Required |
| 12 |
Accessory and Abrasive Compatibility |
Using an incompatible wheel, bit, disc, or attachment may cause breakage or loss of control. |
Verify supplied accessories, shank diameter, maximum rated speed, mounting method, guards, and user instructions. Check that included accessories match the approved bill of materials. |
Each accessory is compatible with the tool and has a maximum rated speed at least equal to the applicable tool operating speed. Damaged, unmarked, or incompatible accessories are rejected. |
Accessory specifications, supplier conformity documents, incoming inspection records, and compatibility test results. |
High |
Required |
| 13 |
Dimensional and Cosmetic Quality |
Dimensional variation can affect assembly, safety clearances, ergonomics, and accessory fit. |
Use calibrated gauges to inspect critical dimensions and perform visual inspection for molding defects, burrs, sink marks, contamination, coating defects, and color variation. |
Critical dimensions meet approved drawings. Surfaces are free from sharp burrs, cracks, exposed metal, oil contamination, severe molding defects, and defects that impair operation or safety. |
Dimensional report, first-article inspection record, gauge calibration certificates, approved master sample, and defect classification standard. |
Medium |
Recommended |
| 14 |
Production Sampling and Acceptance |
Inadequate sampling may allow critical defects to pass into shipment. |
Use a written sampling plan based on lot size and contractual requirements. Inspect critical safety characteristics separately from major and minor cosmetic characteristics. |
Critical safety defects: zero acceptance. Major and minor defect limits must be defined in the purchase agreement, commonly using an AQL-based plan where appropriate. |
Sampling plan, lot definition, inspection report, defect photographs, measurement data, and signed release decision. |
High |
Required |
| 15 |
Traceability and Change Control |
Uncontrolled changes to motors, switches, batteries, plastics, suppliers, or tooling may invalidate previous safety results. |
Review batch codes, component lot records, supplier-change notices, engineering-change approvals, and retained samples. Confirm that production parts match the approved bill of materials. |
Every shipment is traceable to a production lot and critical component lots. No safety-related change is implemented without documented review, approval, and revalidation where necessary. |
Bill of materials, batch records, change-control log, retained-sample register, and supplier approval records. |
High |
Required |
| 16 |
Packaging, Transport, and Final Release |
Impact, moisture, incorrect accessories, or missing documents can damage the tool or create hazards after delivery. |
Inspect drop protection, moisture barriers, carton markings, accessory count, manuals, chargers, spare parts, and pallet stability. Perform final quantity and identity verification. |
Product is protected against normal handling and transport conditions. Correct model, quantity, accessories, manuals, labels, and shipment documents are present and undamaged. |
Packing specification, drop-test or transport-test evidence where required, carton inspection record, quantity report, and final release approval. |
Medium |
Recommended |