🔧 Stainless Steel Bolt & Nut Size Identifier Keychain Tool
Stainless Steel Bolt & Nut Size Identifier Keychain Tool – Metric & SAE Dual Scale
Fast & Accurate Size Check
Quickly identify the correct wrench or socket size for nuts and bolts in seconds. Say goodbye to guesswork and wasted time during repairs.
Metric & SAE Dual Scale
Covers metric sizes (8–25mm) and imperial sizes (5/16"–1"), making it suitable for bolts and fasteners used worldwide.
Durable Stainless Steel Build
Made of corrosion-resistant stainless steel, this tool is tough enough for everyday use in garages, workshops, and job sites.
Smooth Sliding Adjustment
Features a sliding mechanism that locks in place for precise measurements, ensuring accurate bolt and nut size detection every time.
Portable Keychain Design
Equipped with a swivel carabiner hook, it can be clipped to your belt, backpack, or keyring. Always keep it handy wherever you go.
Practical for Any Toolkit
An essential helper for mechanics, DIY enthusiasts, handymen, and engineers. Compact yet powerful for quick measurements on the spot.
Specifications
| Measurement Range | Metric: 8–25mm / SAE: 5/16"–1" |
| Material | Stainless Steel |
| Length | 5.12 in / 13 cm |
| Width | 1.02 in / 2.6 cm |
| Weight | Approx. 40 g |
| Attachment | Keyring with Swivel Clip |
| Package | 1/2/3 × Bolt Size Identifier Tool |
FAQ
Q1 | Can it measure both metric and SAE bolts?
Yes. It includes both metric and imperial scales to cover all common bolt types.
Q2 | How do I use it?
Insert the bolt head into the slot, slide to adjust until it fits snugly, and read the size directly.
Q3 | Is it durable?
Absolutely. Made of stainless steel, it resists rust and heavy wear, even in tough environments.
Q4 | Is it convenient to carry?
Yes. The keychain design allows you to clip it to keys, bags, or belts for quick access anytime.