Essential 3pc Impact Socket Adapter Set Hex Shank Extension for Heavy Duty JobsDescription: Turn Square Head Hexagonal Shank Extension Bar Sleeve Beaded 1/4 3/8 1/2 Sleeve Wind Batch Electric Connection Switching Lever. Length 50mm. Turns any power drill into a power nut driver Sturdy spring-loaded ball bearing holds sockets securely in place ,Sockets Snap-On Tightly and Won't Slip Off. Constructed of rust-resistant chrome vanadium steel for long lifetime handles the toughest jobs Hex shaft saves time changing out of Power Drill Saves time over traditional hand operated nut drivers. Kit Hardened & treated Chrome-Vanadium steel alloy for superior strength & durability Prevents Stripping during High Speed Drill Operation. Specification: Name: 3PC steel bead handle Material: chrome vanadium steel Color:black Length:50mm Size: 1/2(12.7mm),1/4(6.35mm),3/8(9.5mm)(Approx.) Uses: Suitable for screwdriver handle or electric screwdriver tool Quantity:3pcs Package Includes: 1 * 1/4 in. drive 1 * 3/8 in. drive 1 * 1/2 in. drive Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Essential 3pc Impact Socket Adapter Set Hex Shank Extension for Heavy Duty Jobs Safety compliance to ensure product safety Diversity and professionalism to meet your diverse needs High quality and durability, produced with premium materials and advanced technology Products are environmentally friendly and sustainable, focusing on green and sustainable development