3Pcs 80/120/140Mm 1/4 Inch Hex Chuck Bit Extension Quick Change Screwdriver Connection Rod Adapter Sleeve 3Pcs Quick Release Screwdriver Extension Bits Holders with 1/4 Inch quick-change hex shanks fits any standard size screwdriver screwdriver bit, 1/4 inch impact drivers and handheld drivers. Change the outer six angles to the inner six angles-great practicality. High hardness and anti-slip, large torque and long service life and durability. Screwdriver bits can block the connecting rod. Excellent for bushings and connectors, extending the connecting rod. It is used to connect electric screwdriver, screwdriver, screwdriver nozzle, screwdriver bits. Suitable for electric screwdrivers, pneumatic screwdrivers and other power tool screwdrivers, extended drill bit. Color: BlackMaterial: Carbon SteelPackage Contents: 3 x Screw ConductorOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.