How does this gap up to 2.55mm when it only goes to 1mm in the pictures?

This may be a misprint.. As you can see from the pictures the imperial side goes up to 0.1 inches, and the metric side has markings up to 2.15mm (i think) However what spark plugs have that sort of gap anyway. This is a very useful tool, simple accurate and straightforward to use

Does this actually adjust the gap as well as measure it

Yes it can open/increase the spark plug gap by inserting the edge between the electrodes and 'easing' them apart very carefully. Unfortunately, it has no facility for decreasing the gap, for that I very carefully press the plug electrode against a door frame or other solid surface.

Is this suitable for diesel engines?

The clue is in the title. Don't have sparkplugs on diesel engines.

question. can it check gap in points

It is OK for plugs but far too cumbersome for checking points - you need to use blade type feeler gauges which are much narrower and will fit easily between the points in a distributor . Put the words "feeler gauges" into Amazon's search engine and you will find the folding multiple blade type.

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Silverline Spark Plug Gap Tool 0.5 - 2.55mm / 0.02 - 0.1" (202148)

Product ID: 47967853

Details

Brand
Silverline
Core material
Alloy Steel
Thread size
M14x1.25
Top material type
Alloy Steel
Vehicle service type
Motorcycle

🔧Flanged hole protects center electrode

⚙️Precision gap range 0.5-2.55mm

🛠️Durable solid alloy steel

E£ 1091

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Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Tune like a pro, gap like a boss!

BUILT TO LAST - Crafted from solid alloy steel for unmatched durability and reliability 🛠️
PRECISION PERFECTED - Adjust spark plug gaps from 0.5 to 2.55mm with exacting accuracy ⚙️
COMPACT CONVENIENT - Lightweight coin-type tool that fits easily in your pocket or toolbox for on-the-go tuning 🔩
DAMAGE FREE ADJUSTMENTS - Flanged hole design lets you tweak side wires without harming the center element 🔧
UNIVERSAL COMPATIBILITY - Fits a wide range of motorcycles and automotive spark plugs for versatile use 🚗

The Silverline Spark Plug Gap Tool (0.5 - 2.55mm) is a precision-engineered, solid alloy steel tool designed for accurate spark plug gap adjustments. Featuring a flanged hole to protect the center electrode during side wire tweaks, it offers universal compatibility with motorcycles and automotive spark plugs. Compact and durable, it’s the essential tool for professionals and DIY enthusiasts aiming for optimal engine performance.

Specifications

ASIN	B00865SXQ4
Automotive Fit Type	Universal Fit
Best Sellers Rank	230,703 in DIY & Tools ( See Top 100 in DIY & Tools ) 984 in Hand Tool Sets
Brand Name	Silverline
Compatible with Vehicle Type	Motorcycle
Core Material	Alloy Steel
Customer Reviews	4.5 4.5 out of 5 stars (1,389)
Gap Size	2.55 Millimeters
Global Trade Identification Number	05024763079771
Included Components	1x Spark Plug Gap Tool (0.5 - 2.55mm / 0.02 - 0.1")
Item Type Name	Spark Plug Gap Tool
Item Weight	0.02 Grams
Manufacturer	Silverline
Manufacturer Part Number	202148
Manufacturer Warranty Description	Manufacturer
Model Number	202148
Thread Size	M14x1.25
Top Material Type	Alloy Steel
UPC	798256107603

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E£ 1091

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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