More expensive but look at the M18 series of impact. Actually I have my original high torque model I would be open to selling. 1100/760 ft·lb of torture (I typed torque but the autocorrect also fits). Ive stretched a few bolts with the sucker. I bought the 1400/900 ft·lb model to upgrade.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)