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- Easily identify bolt sizes on-the-go.
- Small and compact size makes it easy to carry around anywhere.
- Effortlessly switch between Metric and SAE measurements
- Say goodbye to the days of test fitting sockets to find the right size.
Instant Bolt
Size Identification
Our Bolt Size Finder gauge lets you identify any bolt or nut size instantly, saving you time and effort. No more testing different sockets to find the right size; our tool makes the process simple and easy.
Measures Both
Metric and SAE Bolts
Our Bolt Size Finder measures both Metric (8 - 25 mm) and SAE (5/16 - 1") bolts, making it versatile and suitable for any job.With this tool, you won't have to worry about grabbing the wrong socket.
Portable and
Compact Keychain
Our Bolt Size Finder is portable and compact, making it easy to take with you on the go.Attach it to your keychain and you'll always have it on-hand when you need it.
Saves You
Time and Effort
Our Bolt Size Finder saves you time and effort by allowing you to quickly and easily identify bolt and nut sizes.No more wasted time trying to figure out which socket to use our tool does the work for you.
Why Buy From Us
Unrivaled Service
Talk to a real human for customer support within 30 business minutes or get your money back.
Limited Lifetime Warranty
All hand tools and tool organizers include a limited lifetime warranty that covers all manufacturer's defects.
90-Day Returns
Use our tools completely risk-free for 90 days and if you're not happy with them, get a full refund.
Satisfaction Guaranteed
We go above and beyond to to make your buying experience as easy & smooth as possible.
- Reviews
- Questions
CanadaQuality tool and customer service are very helpful in changing the delivery service
CanadaBolt size finder keychain
Bought it for my son for his birthday he loves it!! My son in law used it he loves it too so I ordered another one for him for Christmas
Olsa Tools Canada
Thank you, Kellie, for the amazing review! We put in the work to keep you and all our clients happy. We hope to see you again. Have a nice day ahead! Warm Regards, Olsa Tools
Gift
Gift for my son and he loves it
Olsa Tools Canada
Hello Richard, Thanks so much for sharing your experience and writing positive feedback for us. We hope to see you again soon. Warm Regards, Olsa Tools
CanadaDidn't receive it
Can't review the item because I never got it. So my review is, don't buy from this company unless you want to throw money away
Olsa Tools Canada
Hello Autumn, We are sorry to hear that you have not received your item. Please contact our support team and they should be able to look into the issue for you. Warm Regards, Olsa Tools
CanadaSimple and accurate!
This little tool / shop aid is Simple and accurate! Is it metric or imperial. This eliminates the need of a handful or both sockets or wrenches. Great little tool!!
Olsa Tools Canada
Hello Grant, Thank you for taking the time to write positive feedback for us. We highly appreciate it. Warm Regards, Olsa Tools