Top Dead Center Tool

Top Dead Center Tool - 10-12 mm

• Can be used into conjunction with a dial indicator (not included) for accurate Top Dead Center measurements
• Easily determine true Top Dead Center when setting valves, timing and other top end work
• Uses O-rings to prevent shaft from falling into combustion chamber
• Used for both 10 mm and 12 mm spark plug holes
• Part is used for 14 mm thread insert