My 2 sets of them,made by Wright,are 3/8" drive and 1/2" drive.The 1/2" drive goes to 1/2". Never needed any size larger but I would think Wright could furnish any size you needed up to the max size commonly used on consumer products. Industrial and commercial is another game.Would a hard bolt with double nutts on the shank with a head that would fit the Allen Screw and a long handled Breaker Bar do the job? I've used rigged up combinations like that before.
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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