| Type | Socket Extension Bar | Screwdriver Bit Holder |
| Material | zinc alloy | Chrome vanadium steel |
| Length | 80mm、120mm | 60mm |
| Shank: | 1/4" hex shank (6.35mm) | 1/4" hex shank (6.35mm) |
| Quantity | 2pcs | 1pc |
| Socket Extension Bar | Screwdriver Bit Holder |
| The black cover can be Extented.Black cover Anti slip soft design.Socket Extension Bar black cover and axis separate.This guide rod is only suitable for Mounting guiding screw of batch head. | Interface has a locking mechanism、 built-have magnetic、 automatically pop up batch head.Suitable for drill、 screwdriver、 batch head and other to transfer.Extend all kinds of screwdriver bits、 screwdriver head conversion uses;Fast、 fastening; Greatly improve work efficiency. |