Using the silhouette printed on the side of the gauge to identify smaller o-rings, do I use the outer or inner silhouette?

Nicholas, your o-ring should completely cover the white part of the silhouette. This is a bit tricky to do by eye. There's more to sizing an o-ring than comparing it to the silhouette. The Busy Corner o-ring gauge you're referencing is made for US sized o-rings. There are also metric, Japanese and British sizes. The only way to be sure of an o-ring's size is to measure the ID, OD and cross section with a caliper. For US o-rings, the numbers printed next to each silhouette on the gauge are called "dash" numbers. O-rings made to AS-568 specifications, no matter who the manufacturer is, will be the same size. So a -105 (dash 105) o-ring will have an inside diameter of .143, an outside diameter of .349 and a cross-section of .103. The first digit of a dash number tells you the cross section in decimal inches. 0 is .070, 1 is .103, 2 is .139, 3 is .210 and 4 is .275. Charts for US, metric, Japanese and British sizes are available on the internet. I likely gave you more info than you requested, but thought it may be of help to others.

does it measure in metric?

No,this oring gauge measure in Imperial(Inch) sizes.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

O-Ring Meter Makes Business Smart, Telescopic O Ring Sizing Plastic Gauge, Sliding Style National Type, To Measure O Rings, Inner Diameter, OD, Thickness Gauge Blue

Product ID: 806292431

Details

Brand
BUSY-CORNER
Colour
blue
Manufacturer
BUSY-CORNER
Material
Plastic
UPC
722794896965

📏Measures O-rings up to 33cm (13")

🔄Telescopic sliding gauge for precise sizing

🔵Durable high-quality plastic build

Description

🔧 Size it right, every time — because precision means power.

COMPACT PORTABLE - Small, lightweight design with a handy handle—perfect for on-the-go professionals and busy workshops.
EFFORTLESS OPERATION - Telescopic sliding style ensures quick, stretch-free measurements every time—no guesswork needed.
CONFIDENCE GUARANTEED - Backed by hassle-free returns and a 4.7-star rating from 150+ users who swear by its reliability.
UNIVERSAL COMPATIBILITY - Covers a wide range of O-ring sizes from 001 to 475, making it your all-in-one sizing solution.
PRECISION AT YOUR FINGERTIPS - Easily measure inner diameter, outer diameter, and thickness with AS-568/BS1806 standard accuracy.

The BUSY-CORNER O-Ring Meter is a compact, high-quality plastic gauge designed for professional-grade measurement of O-rings. It accurately measures inner diameter, outer diameter, and thickness according to AS-568 and BS1806 standards, accommodating sizes up to 33cm (13") with a telescopic sliding mechanism. Trusted by hydraulic and repair professionals, this tool streamlines O-ring sizing with ease and precision, backed by excellent customer satisfaction and a no-questions-asked return policy.

Specifications

ASIN	B08BHR6GG8
ASIN	B08BHR6GG8
Best Sellers Rank	#591,804 in Fashion ( See Top 100 in Fashion ) #404 in Ring Sizers
Brand Name	BUSY-CORNER
Color	blue
Customer Reviews	4.7 4.7 out of 5 stars (155)
Customer reviews	4.7 4.7 out of 5 stars (155)
Date First Available	18 September 2023
Item model number	o ring gauge blue
Manufacturer	BUSY-CORNER
Manufacturer	BUSY-CORNER
Material Type	Plastic
Model	o ring gauge blue
Number of Items	1
Number of Packs	1
Number of Pieces	1
Part Number	o ring gauge blue
Product Dimensions	8 x 38 x 7 cm; 231 g
UPC	722794896965
Unit Count	1.0 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

View all Trustpilot reviews