My Proposed Project:
5/8" Drive Hand Ratchet system with a 3 piece 50" long Telescopic Handle with a group of Hand/Impact Sockets.
This system is to allow a mechanic tighten or loosen bolts (or fasteners if no bolts exist) easily. The system will compliment the 1/4" Dr, a 3/8" Dr, a 1/2" Dr and the 3/4" Drive Ratcheting systems.
5/8" drive system will fall between 1/2" & 3/4" drive systems. A 1/2" drive chrome sockets above 3/4" cannot tighten or loosen with the 1/2" drive ratchet system available because the handle length is not long enough. A 5/8" drive system with Black oxide sockets from 7/8" up to 2" will give a mechanic a chance to loosen bolts tighten to their designed torque requirement.
As you can see, NO 1/2" drive Ratchet or Flex-T Handle can generate the force required to BREAK loose these bolts, because the handle length of either a ratchet or flex t handle just isn't there. SO, why not just use a 3/4" drive with the proper sockets? The Handle length of the 3/4" drive Ratchet isn't long enough to break these bolts loose. If a mechanic had a 5/8" drive system, with at least a 50" to 60" telescopic handle length, (to reduce weight) one could effectively loosen any of these bolts. There is a problem and that would be to keep the socket on the bolt evenly to distribute force on the corners of the bolt.
A 5/8" drive system will also round out a mechanics tool set giving him a fighting chance to tighten or loosen bolts to their designed torque requirement.
For trucks on the road, a tool set with sockets & a 5/8" drive ratchet ,with an adjustable telescopic handle can give a driver a chance to change a tire and get the tractor to a garage. Most truck rims require 500 pound-ft of torque. Once he gets back on the road he can stop and have his truck tires checked for proper torque.
Many years ago, manufacturers use to make 5.8" drive ratcheting systems, but again the handle length was not enough to tighten or loosen bolts.
With the number of Trucks on the road today in 2016, it is a main safety concern that each truck be required to carry a TOOL set that is capable of fixing a flat tire. How many times have you seen a RE-TREAD on the road..... this is a safety concern.