Description Characteristic: Includes 9pcs sleeves (hw6, hw7, hw8, hw10, hw12, hw14, hw17, hw18, hw19) to meet the use requirements. The socket can be used with tools such as ratchet wheel to tighten hexagonal drive fasteners quickly and easily. Hexagon socket is precision machined to accurate size. Bevel and chamfer design is easy to insert, easy and smooth, effectively preventing the wear of drill bit and fastener. With a separate pinhole base design, locking pins can be placed to increase safety and maintain stability when torque is applied. Chromium-molybdenum plated steel material ensures excellent durability, strength and long service life. Black phosphate coating greatly improves rust resistance and corrosion resistance. Describe: Name: pneumatic sleeve set Quantity: 9pcs/set Material: steel colour: black Package Contents: 1 x Pneumatic sleeve set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.