STIHL
BF-KM KombiTool
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
Manufacturer source and exact configuration reviewed 19 September 2026 · Combination-specific manufacturer declarations. Match the stated engine/powerhead, handle type and attachment configuration. Both handles and K=2 m/s² are retained; each mode uses the higher handle. The first option requires assessment until a specific combination is selected. The CSV single figure has not been applied across all engines. · Match your exact model, generation, attachment and working mode.
| Working mode | Declared m/s² | Uncertainty K m/s² |
|---|---|---|
| Select the exact powerhead combination · otherwise enter assessed value | Value required | Not available |
| BF-KM + KM 56 R loop handle · higher handle | 7.4 | 2 |
| BF-KM + KM 85 R loop handle · higher handle | 6.3 | 2 |
| BF-KM + KM 94 R loop handle · higher handle | 4.2 | 2 |
| BF-KM + KM 111 R loop handle · higher handle | 3.1 | 2 |
| BF-KM + KM 131 bike handle · higher handle | 3 | 2 |
| BF-KM + KM 131 R loop handle · higher handle | 4.3 | 2 |
| BF-KM + KM 235.0 bike handle · higher handle | 3.1 | 2 |
| BF-KM + KM 235.0 R loop handle · higher handle | 3.4 | 2 |
| BF-KM + KM 130 R loop handle · higher handle | 2.5 | 2 |
| BF-KM + FR 131 T · higher handle | 3.8 | 2 |
| BF-KM + FR 235.0 T · higher handle | 1.4 | 2 |
| BF-KM + KMA 80.0 R loop handle · higher handle | 3.1 | 2 |
| BF-KM + KMA 120.0 R loop handle · higher handle | 2.9 | 2 |
| BF-KM + KMA 135 R loop handle · higher handle | 2.1 | 2 |
| BF-KM + KMA 140.0 R / KMA 140.0 R B loop handle · higher handle | 1.7 | 2 |
| BF-KM + KMA 200.0 R loop handle · higher handle | 2.5 | 2 |
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 ↗