Description
Product Overview
The Portable Bolt Size Finder by RDGXAED is a precision-engineered, dual‑unit thread identification tool designed for both professional mechanics and hobbyist DIYers. Crafted from high‑grade stainless steel for the measuring jaws and an aluminium alloy body, the gauge delivers exceptional durability while remaining lightweight at just 3.52 ounces. Its compact keychain form factor measures only 5.1 x 2.3 x 0.3 inches, allowing it to be conveniently attached to a set of keys, a belt loop, or a tool bag for instant access. The tool features clearly etched metric (mm) and SAE (inch) scales on each side, eliminating the need to toggle between separate gauges. This dual‑scale design enables rapid, accurate identification of bolt and nut thread pitches, reducing downtime on the shop floor and preventing costly mismatches. The stainless steel construction resists corrosion and wear, ensuring long‑term reliability even in harsh workshop environments.
Usage
Whether you are assembling automotive components, repairing household appliances, building furniture, or performing precision machining, the Portable Bolt Size Finder provides a versatile solution for any thread‑related task. Its small size makes it ideal for on‑site field work, allowing technicians to quickly verify thread sizes without carrying bulky gauge sets. The tool excels in automotive repair bays where both metric and imperial fasteners are common, as well as in construction sites where speed and accuracy are paramount. DIY enthusiasts will appreciate the convenience of having a reliable thread gauge on their keyring, ready for weekend projects ranging from bike maintenance to home improvement. The clear, dual‑unit markings facilitate use by users of all skill levels, from seasoned professionals to beginners learning the fundamentals of thread identification.
Why Choose Us
RDGXAED distinguishes itself through a commitment to quality, precision, and user‑centric design. Each gauge undergoes rigorous testing to meet industry standards for accuracy, ensuring that every measurement is trustworthy. The combination of stainless steel and aluminium alloy not only provides a premium feel but also guarantees resistance to rust, impact, and daily wear, extending the product’s lifespan far beyond typical disposable tools. Our manufacturing process incorporates a multi‑layer polished finish that reduces glare and enhances readability under various lighting conditions, from bright workshop fluorescents to dimly lit engine bays. Additionally, RDGXAED offers responsive customer support and a straightforward warranty policy, giving buyers confidence that their investment is protected. By choosing this gauge, you benefit from a tool that blends durability, precision, and convenience—attributes that are essential for maintaining high standards of workmanship.
Key Features
- Instant dual‑unit identification of metric and SAE threads, saving time on every job.
- High‑grade stainless steel jaws provide corrosion resistance and long‑term accuracy.
- Lightweight aluminium alloy body ensures durability without adding bulk to your keyring.
- Compact keychain design fits easily on belts, tool bags, or backpacks for on‑the‑go access.
- Responsive after‑sales support and a clear warranty give peace of mind for every purchase.
FAQ
How do I read the metric and SAE scales on the gauge?
Each side of the gauge is engraved with both metric (millimeters) and SAE (inches) markings. To read a thread, simply align the bolt or nut with the nearest marking on the appropriate scale. The clear, high‑contrast etching makes it easy to see the correct size even in low‑light conditions.
Can this gauge be used on both external and internal threads?
Yes. The gauge is designed to measure the pitch of external threads on bolts and the corresponding internal threads on nuts. By placing the tool against the thread profile, you can quickly determine the correct size for either type of fastener.
Is the tool suitable for high‑temperature environments?
The stainless steel components are rated for typical workshop temperatures and can tolerate brief exposure to elevated heat. However, prolonged exposure to extreme temperatures may affect the aluminium body, so it is best to store the gauge in a cool, dry place when not in use.
What should I do if I receive a defective gauge?
Contact RDGXAED customer support within 30 days of receipt. Provide your order details and a description of the issue, and we will arrange a replacement or refund according to our warranty policy.
How many different thread sizes can this gauge identify?
The dual‑unit scale covers a comprehensive range of common thread pitches, from fine to coarse, allowing you to identify virtually any standard metric or SAE fastener used in automotive, construction, and household applications.





Nut and Bolt Thread Checker PUIOCO 62‑Size Standard & Metric Gauge
Thread Checker Set (55-Piece), Detachable Nut & Bolt Size Finder with Color-Coded Gauges, Bolt and nut Sizer, Ideal Gift for Mechanics, car Enthusiasts, DIYers, and Home Tool Kits
Reviews
There are no reviews yet.