9Pcs Bit Socket Set 1/4" Square Drive PZ1-PZ3,PH1-PH3,FD4-FD7 Phillips Slotted Extension Impact Bit Power Nut Driver Set S2 & CR-V Steel Socket Ratchet Wrench Bits

The drill bit is forged from S2 steel and treated with carbon black phosphating. It has high strength and hardness and can withstand large torque without deformation. The sleeve is made of chrome-vanadium alloy steel and the surface is nickel-plated with matte finish, which is wear-resistant and durable The socket drive adopts an anti-drop groove design, the tool connected to the bottom is not easy to fall off, more stable, and will greatly increase the torque, allowing you to work more efficiently and easily The beveled chamfer design can be easily, smoothly and accurately inserted to protect the drill bit and fasteners from damage The drill socket is used to quickly loosen and tighten nuts and bolts in hard-to-reach areas, making it suitable for bicycle, car repair or industrial work projects that require light torque application, and can be used with tools such as 1/4" electric drills, ratchet wrenches, manual electric wrenches, etc. The interface is a 1/4" square drive, tools with a 1/4" drive can be used directly, and tools with other drives must be equipped with a 1/4" connecting rod; please confirm whether the socket specifications correspond to the screws before purchasing