Jakemy JM-8143 10 in 1 Aluminum Alloy Deep Hole Screwdriver Set H4*45mm bits with sandblasting and nickel plating finish enhance the anti-rust property BITS Material: Chrome Vanadium .With Strong magnetic. Universal extended soft pole, no dead Angle in all directions, knurled non-slip, cr-v chrome vanadium steel, magnetic adsorption. Stainless steel anti-static hardened straight tweezers, can prevent the damage caused by static and parts of the environment, work some chick design, suitable for precision operating within a narrow space. Equipped with a variety of signal of screwdriver, facilitate you in operation according to the screws for replacement, operation is convenient fast, to adapt to a variety of types of screws.