Measure your spark plug gap to obtain its exact dimensions with this solid steel, SCA Spark Plug Gauge Coin measurement tool. This little coin will size up gaps between 0.50mm to 2.5mm (0.02″ to 0.10″) to give you the exact measurements needed to find the right sized new spark plug to replace a worn-out or damaged original piece.

• Solid steel construction for strong wear and tear resistance
• Measures spark plug gaps from 0.50 to 2.5mm or 0.02 to 0.10″ for a wide range of applications
• Compact design fits easily in any tool bag or box