Hand tools are tools used with hands for repairing automobiles and motorbikes they are also used at manufacturing sites of industrial machines, construction and civil engineering sites, etc.
Screwdrivers and wrenches are used to fasten and loosen bolts and nuts.
By attaching handle with gears, Wrenches include socket wrenches and hex socket wrenches it's also possible to fasten nuts or socket head bolts using these tools, called ratchet handle.
These tools may depend on the operator's sense, torque screwdrivers, etc., are capable of torque control, and they are used to fasten at uniform torque...
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