A standard wrench-and-screwdriver approach to adjusting valve clearance on a Honda or Toyota engine means fighting to keep the adjusting stud from spinning while the jam nut turns. This Powerbuilt tool combines both functions in one piece, with a view window that shows exactly where the screwdriver blade is seated.

Powerbuilt 648827 Jam Nut Valve Adjusting Tool Features:

• For adjusting valve clearance on Honda, VTEC, Toyota, Nissan and Mazda engines.
• Fits valves with a 10mm jam nut and slotted valve adjusting stud.
• View window shows screwdriver blade position for easier engagement.
• All-in-one design tightens the jam nut while preventing stud movement.
• 7-1/2 in. long handle.
• Sold individually.