DeWalt
DCG405 · Angle grinder
Vibration data and trigger-time calculator
Calculate this tool’s exposure
Other tools in your current tab’s daily draft are kept when you add this tool. Review the combined daily total in the calculator.
Time and points at your selected magnitude
Times assume no other exposure that day and are rounded down to whole minutes. These thresholds are not safe-time allowances. Keep exposure as low as reasonably practicable.
Manufacturer declarations
Reviewed European manufacturer manuals · DCG405 · types 3, 1 · 18 V DC · reviewed 2026-09-17 · match rating-plate type · Declaration 15 November 2024. Do not apply Type 3 values to Type 1. Wire brushing and abrasive cutting can have different vibration levels; preserve the published application label. Declaration 8 May 2017. Original manual within archived DCK663P3 kit document. Distinct from Type 3 declaration. · Match your exact model, generation, attachment and working mode.
| Working mode | Declared m/s² | Uncertainty K m/s² |
|---|---|---|
| Surface grinding · type 3 | 7.5 | 1.5 |
| Disc sanding · type 3 | < 2.5 | 1.5 |
| Concrete grinding and cutting off · type 3 | 6.9 | 1.5 |
| Surface grinding · type 1 | 4.4 | 1.5 |
| Disc sanding · type 1 | < 2.5 | 1.7 |
Declarations are test results, not workplace measurements. The catalogue starting value is the manufacturer declaration plus published K when K is above 1.5 m/s². Otherwise a 1.5 m/s² allowance is used, including when K is missing. This minimum allowance is a site default; the actual manufacturer K remains in the table above. No HSE tool-type minimum is applied. Missing declarations require an assessed value. Match the working mode, battery and accessory to the manufacturer source. Use your employer’s assessed value where appropriate.
Current and historical sources are included; catalogue coverage and UK sales status are not fully verified. Missing or ambiguous figures require assessment.
HSE calculation and threshold guidance ↗