Cable Connector, Double Oval Point Screw Connection,Male Female, 3 0 to 4 0 AWG Cap, Black no checkout Curved jaw puts tremendous pressure Curved jaw puts tremendous pressure on four points of any style nut or bolt head Includes convenient wire cutter Constructed of high grade heat treated alloy steel for maximum toughness and durability Guarded release trigger quickly unlocks and protects from accidental release Turn screw to adjust pressure and fit Durable high impact case with non slip rubber stands up to job site demands Protective full tape blade Mylar® coating and added BladeArmor® coating at the hook extends tape life against abrasion and heavy use Easy to read measurements with large font numbers Standard stud markers Cam action design of male half connector pulls the two halves together Connector covers are molded form a special heat and cold resistant material Covers have no metal liner to rust or corrode Metal parts are precision machined with heavy specially shaped brass extrusion