Universal Hex Wrench Extender Conversion Adapter(Black)

1. Simple product, easy to use
2. Heat-treated drop-forged valve body, durable
3. Precision forging, high hardness, wear resistance and not easy to rust
4. Applicable scope: 1/2 inch driver or 21 mm hex driver
5. Function: Use with another wrench or power bar to extend your wrench to provide more leverage for nuts and bolts