Picked up a Milwaukee 2754-20 impact wrench. What a great tool!

It has three speeds: 900, 1500, and 2500 rpm. Maximum torque is 210 ft-lb.

Am I correct that the relationship between speed and torque is roughly linear? That, if I get 210 ft-lb at 2500 rpm, at 900 rpm it would max out around 75 ft-lb?

If this is the way it works, then I can fasten lug bolts without fear of over-torquing.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 158k miles
06 E320 CDI "Rutherford", Black on Tan, 177k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 144k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 72k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife