This precision spark plug gap tool comes with a 32-blade feeler gauge, enabling fast, accurate spark plug gap adjustments for optimal engine performance. It works with most standard spark plugs.
Key Features:
⚡ Broad Compatibility with Standard Spark Plugs
The tool is designed for most standard spark plugs featuring 10mm, 12mm, 14mm, or 16mm threads, providing a versatile option for cars, motorcycles, and small engines. It does not fit spark plugs with 18mm threads or extra-long or extra-short threads, so confirm the plug dimensions before use.
💪 Aluminum and Stainless Steel Build
The gap adjuster uses high-grade aluminum alloy to provide strong corrosion and rust resistance. Its included feeler gauge has polished stainless steel blades designed to withstand scratches and burrs for dependable, long-term use.
📏 Accurate Settings with a 32-Blade Feeler Gauge
With measurements from 0.0015" to 0.035" (0.04mm to 0.88mm), the stainless steel gauge works with the adjustment tool to produce precise, repeatable gaps. This avoids guesswork and reduces the risk of damage associated with forceful prying, hammering, or coin-based adjustment methods.
🔄 Simple, Controlled Adjustment
Insert the spark plug, choose the required feeler gauge thickness, then turn the knurled knob to gently press the side electrode until the desired gap is reached. This gradual approach helps prevent excessive bending and supports consistent results. If the electrode moves back after adjustment, begin with a slightly narrower gap, such as 0.028" when aiming for 0.030".
⏱️ Useful for DIY Maintenance and Professional Work
Automotive hobbyists and professional mechanics can use this kit to make spark plug servicing quicker and more precise than traditional techniques. It helps support reliable engine ignition during each adjustment.
Ideal Use Cases:
Use it when tuning and servicing cars, motorcycles, trucks, lawnmowers, and other small-engine equipment. It is suitable for regular spark plug changes, engine tuning, and performance modifications.
Product Specifications:
- Material: Aluminum alloy gap adjuster, stainless steel feeler gauge
- Dimensions: Approximately 6" × 1.3" × 1.3" (compact for easy storage and carry)
- Feeler Gauge Range: 0.0015"–0.035" (0.04mm–0.88mm), 32 blades total
- Compatible Spark Plug Threads: 10mm, 12mm, 14mm, 16mm (not for 18mm or non-standard threads)
- Color Options: Red, Black
Package Includes:
- 1 x Spark Plug Gap Adjuster (choose Red or Black)
- 1 x 32-Blade Stainless Steel Feeler Gauge
- 1 x User Manual
