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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Air compressors
Eight 24 and 50 litre compressors scored on air delivered at 7 bar, price per l/min, noise and weight, with the intake flow trap explained.
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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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Pressure washers
Eleven pressure washers scored on rated pressure and flow, not the maximums on the box: hydraulic power, price per kW, noise, weight and hose length.
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Laser levels
Eleven cross line lasers, from the Quigo to the GLL 2-15 G, scored on stated accuracy at 10 m, range, price per metre and the IP rating each maker publishes.
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Circular saws
Eleven 184 to 190 mm circular saws scored on cutting depth at 90° and 45°, price, noise and weight, with the inconsistencies in their spec sheets flagged.
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