■Beryllium Copper & Aluminum Bronze
■Reversing the direction of operation in situ without detaching the sockets. It has built in mechanisms for both right and left operation. The ratchets have replaceable gear-pawl assembly.
The tools used in explosion-hazardous places must be made of special materials that do not produce frictional sparks, impact sparks, or even hot, high-temperature surfaces. Such tools are called explosion-proof tools.
Explosion wrenches, explosion screwdrivers, and vices are often used together, causing "slip" problems. In order to prevent this problem, the blade of the screwdriver should be selected correctly, and the vise should ensure proper tightness.