ITEM NAME:3/8" Sleeve Wrench Connecting Rod Socket Adapter Impact Extension Connector Product Description Description: Specifications: Material: chrome vanadium steel CR-V Size: 50 * 9.5mm/1.97*0.37" Usage: It is suitable for driving sleeve with screwdriver handle or electric driver tool (hexagon hole or three jaw collet). After installation, hexagon joint can be converted into square head, so it can be used for sleeve installation and conversion. Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. Included: 1 X Sleeve Wrench Connecting Rod.Included: 1 X Sleeve Wrench Connecting Rod. It is suitable for driving sleeve with screwdriver handle or electric driver tool (hexagon hole or three jaw collet). After installation, hexagon joint can be converted into square head, so it can be used for sleeve installation and conversion.