No score is awarded by hand. It is calculated from the specifications makers publish and the retrieved price. When a figure is missing, the criterion drops out, and the page says so.
18V SDS-Plus rotary hammers
Seven 18V SDS-Plus rotary hammers, one per battery platform, scored on impact energy, capacity, hammer rate and price per joule.
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Inverter generators
Eight 230 V inverter generators from 1.6 to 3.2 kW compared on continuous power, noise at 7 metres, weight and price per kW, with the scoring formula and the measurement traps.
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