Product Description Powerbuilt by Alltrade Tools LLC is a global leader in the design, manufacturing and marketing of tools and shop equipment. Founded in 1979, the Long Beach, California based firm is privately held, with global manufacturing and sales facilities serving customers on every continent. The company's mission statement: Alltrade designs, markets and supplies tools and shop equipment that meet and exceed our customers' expectations of quality, service and value, while achieving profits to ensure the Company's and its employees' future growth and development. Alltrade offers our customers innovation, flexibility and speed to market. From the Manufacturer Powerbuilt? 12mm Jam Nut Valve Adjustment Tool USEFUL ADDITION: For trouble free adjusting of valve clearance on Honda, VTEC, Toyota, Nisan, and other Japanese vehicle engines with 10mm jam nut and slotted valve adjusting stud UNIQUE: All in one design eliminates improvising with multiple tools for precision and easy valve adjustment EASY TO USE: Built in cutaway allows viewing of screwdriver blade position for easier engagement with valve stud FUNCTIONAL: 7 1/2 inch side handle provides leverage for loosening tight jam nuts EASY TO READ: Package includes detailed instruction with usage photos