10 Best Spark Plug Gap Gauge in The UK

Last updated on 16/08/2025

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9.8

Exceptional

Oldbones

Oldbones Spark Plug Gap Tool With Feeler Gauge, Adjuster Compatible with Most 10mm 12mm 14mm 16mm Spark Plugs (Red）

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Why We Love It

Wide applicability for various spark plugs.
Precise measurements ensure optimal performance.
User-friendly design for easy operation.

Main Highlights

【Wide Applicability】Through exquisite craftsmanship, we have extended the threaded rod to a deeper length, making this new version of spark plug gap gauge suitable for 99% of spark plugs in the market, with increased universality.
【Universal Spark Plug Gap Tool】Spark plug gap tool with feeler gauge is designed for spark plugs with 10mm, 12mm, 14mm, and 16mm sizes, specifically for short-threaded spark plugs used in small engines such as chainsaws, trimmers, and other equipment.
【Precise Measurement】Some spark plugs may experience electrode gap rebound, so we recommend using a measurement value that is 0.002-0.004 inches less than the target value. For example, if you want a 0.016-inch gap, we suggest using a measurement of 0.012-0.014 inches, so that when it rebounds, you will achieve a 0.016-inch gap. Simple and efficient.
【Easy to Use】Simply place the spark plug into the universal spark plug gap tool, insert the feeler gauge with the desired gap thickness, rotate the knob until the electrode is compressed to the desired gap thickness. Very easy to use.
【Foldable Gauge】Spark plug gap tool made of 65 manganese steel, each feeler gauge has 32 blades.The measurement range is from 0.0015 inches/0.04 millimeters to 0.035 inches/0.88 millimeters.

Hilitand Spark Plug Gap Gauge, Metal Spark Plug Gap Gauge, Metric Inch Double Scale Gapper Feeler Gap

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Why We Love It

Dual measurement options available.
High hardness for durability.
Perfect for spark plug adjustments.

Main Highlights

【metric and inch】The printed with both metric and inch reading can meet your different needs.
【spring steel wire】Heat treated spring steel wire, high hardness and not easy to deform.
【spark plug gap 】This gap gauge is specially design for measuring and adjusting spark plug gap.
【chrome-plated 】Chrome-plated round shell, wear resistant and no rust.
【durable】Firm rivet linked structure, anti-impact and in use.

Mtanlo Spark Plug Gap Gauge Set, Easily Measure and Adjust Spark Plug Gaps - SAE Dual Marking and Metric Sizing 0.02 to 0.1 Inch and 0.5 to 2.5 mm

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Why We Love It

Durable materials prevent rust.
Versatile adjustment tool included.
Convenient storage box provided.

Main Highlights

High quality materials: The product is made of durable steel and chrome plated to help prevent rust and corrosion.
Spark Plug Gap Adjuster - Covers the most common spark plug spacer sizes and has a built-in gap adjustment tool that can be used to correct the gap size to the correct specifications.
Sizes of gauges: Ramp gauges measure from 0.02 to 0.1 inches; Wire gauges have wire loops in the following sizes: 0.025, 0.030, 0.035, 0.040, 0.045, 0.050, 0.055, 0.060 and 0.080 inches.
Easy to Store:Packed in a plastic storage box for easy storage, suitable size for use, convenient for storage when not in use.
What you get: there are 2 sets of spark plug spacer gauges + thickness gauges in this package, the quantity is enough to meet your daily use and replacement, and will bring much convenience to your daily life.

Spurtar Feeler Gauges 0.03-1.00mm/0.001-0.04" 32 Blades Tapered Feeler Gauge Metric and Imperial, Dual Marked Metric and SAE for Measuring Gap Thickness or Width for Spark Plug, Valve, Piston, Guitar

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Why We Love It

Easy identification with etched sizes.
Smooth polished edge design.
Foldable for portability.

Main Highlights

Easy Identification- Dual marked metric and imperial feeler gauges measuring range from 0.03mm to 1.00mm (0.001inch to 0.04inch), the numbers of size are etched into the feeler gauge for easy identification
User Friendly- The edge of the feeler gauge set is steel and polished. It's full of bright metal texture specially treated, smooth and doesn't hurt your hand
Foldable & Portable- Stainless steel feeler gauges can fold into a plated steel case with a thumbscrew, easy to carry, convenient to take and safe to store
Quality Material- Tapered feeler gauge metric is made of high quality flexible #65 manganese steel, hardened and polished for long time and accurate usage
Long Lasting- The feeler gauge imperial and metric is coated with vaseline. With this protection, the feeler gauge doesn't get rusty and easy to open.

CTA Tools 3238 9 Wire Spark Plug Gap Gauge

Why We Love It

Extensive tool variety available.
Built to last and perform.
Designed for professional use.

Main Highlights

CTA Tools 3238 Spark Plug Gap Gauge - 9-Wire is designed to accurately measure spark plug gaps. The sizes range from 0.025, 0.030, 0.035, 0.040, 0.044, 0.045, .0.050, 0.055 and 0.060-inches. Heavy-duty construction allows for strength and durability. California Prop 65 - Warning, This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
Wide range of professional automotive specialy tools
Professional grade
Heavy duty design

Sealey Vs119 Spark Plug Gapper Circular Ramp Type 0.5-2.4Mm

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Why We Love It

Easy to use tool.
Accurate gap adjustments made.
Dual measurement system included.

Main Highlights

Features:Mechanic�s plug gap tool adjusts plug gap in graduated ramp sequence
Dual marked in Imperial from 0
020IN to 0
100IN and Metric from 0
6 to 2

Spurtar Feeler Gauges Stainless Steel 32 Blades 0.04-0.88 mm (0.0015-0.035 Inch) Feeler Gauge Metric/Imperial for Measuring Gap Width Thickness for Guitar, Spark Plug, Valve, Piston Measure

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Why We Love It

Stainless steel, rust-resistant tool.
Clear, laser-etched markings.
Convenient metric and imperial measurements.

Main Highlights

Measures: Spurtar feeler gauges metric and imperial measuring from 0.04mm to 0.88 mm (0.0015 Inch to 0.035 Inch), a feeler gauge with metal sheet portable to use with clear numbers on it
Practical: Made of stainless steel, each measuring feeler gauge has 32 blades of thickness, a feeler gauge imperial and metric, easy and convenient to take and stock
Multi-role: Marked Metric /Imperial reading, for measuring gap width/thickness imperial /metric sizes, practical measurement tools suitable for designers, engineers
Long-lasting: Laser Etched for each number and scale, a feeler gauge tool set with clear marks on it, make it doesn't wear out easily and last for more time
Anti-rust: Feeler gauge is covered with anti-rust oil, make it doesn't get rusty and is easy to open, gap filler gauge is made of stainless steel, making it less prone to rusting

Silverline Spark Plug Gap Tool, Spark Plug Tool 0.5-2.55mm / 0.02-0.1", Nicking Tool Spark Plug Gap Gauge Hand Tool Sets Spark Plug Removal Tool Chain Gap Adjustment Gauge Tool Spark Plug Sleev

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Why We Love It

High strength for durability.
Made of tough zinc alloy.
Easy to carry anywhere.

Main Highlights

【High Strength】Spark plug gapper is elastic and flexible Heavy duty construction provides strength and durability, sturdy construction makes it strong and durable
【Top Quality Materials】Our spark plug gap gauge measuring tool is made of zinc alloy, which is tough and durable with clear engraving
【Easy to Carry】Spark plug gapper is very easy to carry, it is small and light, practical and convenient, delicate and small, and it can be carried in your pocket
【Delicate Design】Our plug gap measuring tools adopt a round design and have a hanging ring on the top; What's more, the silver colors of these measuring tools are versatile, you can hang them on your keychains as distinctive and practical decorations
【Dimension】These small spark plug gap tools are approximately 1.5 inch/ 3.8 cm in diameter and are packed in a plastic storage box for easy storage

Spark Plug Gap Tool, Gapper Gauge Wire Plug Gap, Spark Plug Gap Gauge Measuring Tool Wire Spark Plug Gap Gauge Tool Scaled from 0.020 to 0.100 Inch. …

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Why We Love It

Durable zinc alloy construction.
Clear and easy-to-read scales.
Convenient hangable design included.

Main Highlights

PACKAGE CONTENTS: You will get 1 pieces of spark plug gap tool in silver color to meet your long-term needs.
TOP QUALITY MATERIALS: Our spark plug gap gauge measuring tool is made of zinc alloy, which is tough and durable with clear engraving.
EASY TO READ: These wire gapper gauge plug gap measuring tools have clear scales, which is convenient for you to measure and read the degree.
DELICATE DESIGN: our plug gap measuring tools adopt a round design and have a hanging ring on the top; What's more, the silver colors of these measuring tools are versatile, you can hang them on your keychains as distinctive and practical decorations.
DIMENSION: these small spark plug gap tools are approximately 1.5 inch/ 3.8 cm in diameter and are packed in a plastic storage box for easy storage.

CAMWAY Feeler Gauge 32 Blades Tapered Feeler Gauge Dual Marked Metric and Imperial Spark Plug Gap Tool Valve Gap Width Thickness Measurement

20% OffFree Shipping

Why We Love It

High quality materials ensure durability.
Compact design for easy storage.
Accurate measurements for precise adjustments.

Main Highlights

【High Quality Material】CAMWAY Tapered Feeler Gauge Is Made of 65 Manganese Steel. 32 Blades Tapered Feeler Gauge Can Be Used For Checking The Gap Value Between Two Joint Surfaces Such As Engine Valve Clearance. The Tip Of The Feeler Gauge Is Smaller, Which Is Suitable For Smaller Gap Measurement. Disassembled The Feeler Gauge Into Several Blades By Adjusting The Fastening Screws.
【Durable & Lasting Gap Measuring Tool】The Feeler Gauge Will Last For a Long Time With an Anti-Rust Oil Coating to Prevent Rust. The Scale Technology Adopts Stamping and Laser-Engraving, Which Will Not Fade for a Long Time.
【Imperial & Metric】Feeler Gauge Metric 0.03mm-1.00mm; Feeler Gauge Imperial 0.001inch-0.040 Inch.
【High Accuracy】The 32-Piece Tapered Feeler Gauge has High Accuracy. Ideal Spark Plug Gap Tool for Measuring Motorbike Spark Plug Gaps, Allowing You to Measure Clearances in More Confined Areas.
【Size】Feeler Gauge Size 100*10mm, Which are Easy to Use And Small in Size for Easy Carrying and Storage.

8.7

Excellent

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We scanned 878 products

We reviewed these offers relevant to the Spark Plug Gap Gauge within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Oldbones, Hilitand, Mtanlo, Spurtar, CTA Tools, Sealey, zhibeisai, iHMeiju, CAMWAY, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Spark Plug Gap Gauge in the market, we considered we took a deep dive into 4391 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Oldbones Spark Plug Gap Tool With Feeler Gauge, Adjuster Compatible with Most 10mm 12mm 14mm 16mm Spark Plugs (Red）. We love many things about this product by Oldbones. What sets it apart from the competition is Wide applicability for various spark plugs. , Precise measurements ensure optimal performance. , User-friendly design for easy operation.
The best value product for most shoppers and where user satisfaction is continuously the highest is Hilitand Spark Plug Gap Gauge, Metal Spark Plug Gap Gauge, Metric Inch Double Scale Gapper Feeler Gap by Hilitand based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Spark Plug Gap Gauge and the best cost-to-value ratio is CAMWAY Feeler Gauge 32 Blades Tapered Feeler Gauge Dual Marked Metric and Imperial Spark Plug Gap Tool Valve Gap Width Thickness Measurementat CAMWAY with a 20% discount.
Our list of the best Spark Plug Gap Gauge is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Spark Plug Gap Gauge in The UK

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We scanned 878 products

We concluded that: