100% Satisfaction Guarantee
30-Minute Customer Service
FREE Shipping Over $125
- 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
United StatesAwesome gadget
Very useful gadget. Small enough to carry in a pocket or on a key chain.
Olsa Tools
Hello David, Thank you for taking the time to write positive feedback for us. We highly appreciate it. Warm Regards, Olsa Tools
United StatesGreat Tool
Great Tool this will save tons of time!!!!
Olsa Tools
Hello Ross, Thank you for taking the time to write positive feedback for us. We highly appreciate it Warm Regards, Olsa Tools
United StatesGreat Tool
Great Tool this will save tons of time!!!!
Olsa Tools
Hello Ross, Thank you for taking the time to write positive feedback for us. We highly appreciate it Warm Regards, Olsa Tools
United StatesBolt Size Finder Keychain
Very well made and ready to use. This will come in handy for nuts and bolts.
Olsa Tools
Hello John, Thanks so much for sharing your experience and writing positive feedback for us. We hope to see you again soon. Warm Regards, Olsa Tools
United StatesBolt size finder
Just as described very fast shipping and great communication
Olsa Tools
Hello Rolland, Thanks so much for sharing your experience and writing positive feedback for us. We hope to see you again soon. Warm Regards, Olsa Tools