Feature 1PREMIUM MATERIAL: This torsion limiting extension bar is made from chromium molybdenum steel, sturdy and durable. 2FUNCTION: Drive size is compatible with impact drivers to limit torsion consistently and accurately to prevent lug nuts and fasteners from over torquing. 3COLOR CODED: Each one is color coded with torsion limit specifications for easy identification and efficient work. 4SECURE: With spring loaded ball to secure sockets, and ball hole at drive end to lock onto impact tool drive tangs to prevent dropping during operation. 5PRACTICAL: This torsion limiting extension bar is very practical and useful hand tool, which provides more convenience.Item Type: Torsion Limiting Extension BarMaterial: Chromium Molybdenum SteelSpecification:1/2in Square Mouth150Ft-lbs(200Nm),140Ft-lbs(190Nm),130Ft-lbs(175Nm),120Ft-lbs(160Nm),110Ft-lbs(150Nm),100Ft-lbs(135Nm),90Ft-lbs(120Nm),80Ft-lbs(110Nm),75Ft-lbs(100Nm),65Ft-lbs(90Nm).Application: Universal .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List10 x Torsion Limiting Extension Bar1 x Toolkit