Digital Caliper [measure fittings, o-rings and more]
From the product description, check product page for current description, price and availability:
- FEATURES: : Measurement Range: 0 – 6” and 0 – 150mm; This caliper measures inside, outside, depth, and step with two sets of jaws and a probe. Easy to toggle between inches and mm with the push of a button.
- DESIGN: This lightweight caliper is made of composite material. Safe to put in your pocket and carry anywhere. The large LED screen is easy to ready and the four measuring capabilities make it a must have around any home or shop.
- VERSATILITY: measure inside, outside, depth and step with two sets of jaws and the probe.EASY READ VISIBILITY: extra large LCD screen for easy and clear reading
I use calipers around my home brewery to… measure things. 🙂 Including… fitting sizes, o-ring sizes [See: Bulk Keg Orings and Keg Repair Part Numbers]
FineSource Electronic Digital Caliper Inch/Metric Conversion 0-6 Inch/150 mm Carbon Fiber Gauge Micrometer Extra Large LCD Screen Auto Off Featured Measuring Tool – Black
Also: Nut & Bolt Thread Checker (Inch & Metric) – via Amazon