Screwdriver is of high-strength Steel, very firm and wear-resistant for us to use. , in the installation can easily absorb screws. Suitable for installation in pneumatic screwdrivers, electric screwdriver, rechargeable drill, using the batch. Widely used power tools, electric screwdriver assembly, electronics industry, household appliances, instruments industry, furniture industry screw equipment. Toughness is good, hard to rupture and wearproof., Manufacturer: BFLKY