Features & Benefits
- Made of drop-forged 4130 steel and hardened to 48 Rockwell
- Fixed Square Head Design for tightening and loosening bolts
- Powder Coated Finish resists rust and corrosion
- Mechanical Operation for precision tightening and loosening
- Includes a base wrench and a cylinder wrench for Lycoming O-235, O-290, O-320, O-360 and O-435 engines