1. Rugged and easy to use 2. Compatible with most ring or double eyelet scissor jacks 3. 1/2 inch drive/hammer drill/ratchet or standard drive slot 4. 13/16 inch lug wrench/tire iron or socket, or easily add a half-inch adapter to any drill 5. If you do not have a 1/2 inch hex wrench or impact wrench, you can easily plug a standard drill into a 1/2 inch adapter and use any cordless or available tool with this tool and those hard scissor jacks. corded drill 6. Slot inner diameter: 1/2 inch 7. Outer diameter of slot: 13/16 inches 8. Material: chrome vanadium steel 9. Size: 2x5cm 10. Weight: 150g