It obtain the high hardness and high torque to be more durable after the overall quenching.
The head of screwdriver is more proper for the screw & obtain the maximal torsion after the precisely process.
The material of shaft: chrome vanadium Nickel steel.
Made of silicon carbide and waterproof sand paper. Waterproof and tensile resistant technology make them can be used on wet or dry surfaces and is ideal for polishing or using between coats of finish. And provides excellent results on metal, plastic, wood, fiberglass and other surfaces.
Extremely lightweight, large base provides excellent stability. Ready for instant use and easy to mount for immediate identification of hazard areas. This PVC Chain Can Be Used For many applications such as barrier systems, public queuing, Car parks, garage forecourts, shops, fetes and events as well as hanging signs & banners.