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Dewalt DCF961 "Ludicrous" High Torque Impact Wrench 1/2 hog ring anvil 1750 ft lbs breakaway $294.99
$294.99
$369.00
Lowest I've seen this go by a decent amount. This is the top dog 20v impact with 1200 fastening 1750 breakaway torque. I'm not ready to retire my 899 for it (probably would just get a 900 anyway) but if you need the big boy this is the best deal so far.
https://tools.woot.com/offers/dew...nt_wp_0_2
https://tools.woot.com/offers/dew...nt_wp_0_2
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I know the pain of those. A $20 weighted socket and the DCF900 or even DCF899 would have had no issue with it though.
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Not really, constant hammering is what mushrooms sockets. Using an impact that can barely remove fasteners is worse. This one is so powerful that you will have a hard time finding bolts/nuts tight enough to hammer more than a second. I'd argue that for most people, their sockets will last longer with this than a less powerful impact.
Agree, I have both
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On my old Mazda V6's, the standard trick was to just rest a breaker bar against the frame and blip the starter to loosen the crank pulley bolt.
On my old Mazda V6's, the standard trick was to just rest a breaker bar against the frame and blip the starter to loosen the crank pulley bolt.
A weighted socket helps with this because it changes the relative natural frequency of the impacts to something that's non-integral with the crankshaft, and may even multiply the effective torque if you can get the crankshaft 180 deg out of phase with the impact wrench (crankshaft is snapping back in the opposite direction when the next blow is delivered). Basically, some of the impact blows start to happen e.g. clockwise, while the crankshaft is snapping back counterclockwise. The crank is a giant torsional spring, and timing is everything.
Stuffing the cylinders only helps so much, because the crankshaft still twists (torsional "bending"), and the stuffing still compresses a little.
Doesn't always work, but removing as many extentions and/or adapters as possible works better than most would think...
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