Spark plug spacer tool made from high-quality aluminium alloy with a red anodised surface and a matte texture. Designed for long durability and ease of use, it allows quick and precise adjustment of spark plug spacing. What you get - Spark plug distance gauge and a feeler gauge. - Feeler gauge with 32 blades, sizes engraved from 0.0015 (0.04 mm) to 0.035 (0.88 mm). - The feeler gauge contains anti-rust oil to prevent rust and ensure smooth use. How it helps - The spark plug distance meter reduces time and effort required to set the gap. - Simply place the spark plug on the distance gauge and adjust the distance precisely. Important note - Some spark plugs may spring back when adjusting the distance. To achieve the target distance of 0.44 mm, use a 0.42 mm feeler gauge. The spring back will reach 0.44 mm. Use scenarios - Car engine maintenance: adjust spark plug spacing quickly and accurately during plug replacement. - Motorcycle or small engine tuning: ensure precise spark plug gaps for reliable ignition. - Workshop setting: perform repeatable and dependable spark plug spacing adjustments across multiple engines.