1. 5/16 inch double square ratchet wrench provides reversible ratchet action, angled head for easier operation
2. Facilitates better installation and repair of air brake systems on heavy trucks, long-haul trucks and trailers, improving braking performance
3. The fork-end designed tool can be safely installed under the pull claw, allowing hands-free operation
4. No prying is required to release the anti-reversal mechanism, apply more steering force and reduce hand fatigue
5. Material: metal + ABS
6. Size: automatic slack adjuster release tool is about 23.3cm, ratchet wrench is about 17cm