The Sealey Ramp Type Spark Plug Gauge is a precision mechanic's tool designed for accurately measuring and adjusting spark plug electrode gaps. This essential workshop gauge features a graduated ramp design that allows tradespeople to quickly check and set plug gaps across a comprehensive range of measurements. Dual-marked with both Imperial and Metric graduations, this gauge covers sizes from 0.020" to 0.100" (0.6mm to 2.4mm), making it suitable for work on petrol engines across cars, motorcycles, lawnmowers, and other small engine applications. The ramp-type configuration provides a continuous measurement range, allowing mechanics to identify the exact gap measurement and adjust electrodes with precision. At just 0.03kg, this lightweight gauge is ideal for mobile mechanics and can be easily stored in toolboxes or service vans. The VS119 model offers a practical solution for workshops and garages where accurate spark plug gapping is essential for engine performance and fuel efficiency