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Hand Tools

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 commonly used to fasten and loosen bolts and nuts. Wrenches include socket wrenches and hex socket wrenches; it is also possible to fasten nuts or socket head bolts efficiently using these tools by attaching a handle with gears, called ratchet handle. These tools may depend on the operator’s sense, which can cause excess or insufficient fastening; torque wrenches, torque screwdrivers, etc., are capable of torque control, and they are used to fasten at a uniform torque.