Read Faster with Electronic/Digital Depth Gages at Penn Tool Co.
When a hole, slot, or step has to hit spec, an eyeballed depth check isn't good enough. A reliable digital depth gage delivers a clear numeric reading the moment the probe touches down, cutting out the interpretation that comes with older mechanical methods.
Since 1968, Penn Tool Co. has equipped machine shops, toolrooms, and inspection departments across the USA with precision measuring instruments built to hold their accuracy through daily shop use. Our electronic depth gage options give your team fast, dependable readings for consistent, repeatable depth measurement.
Digital Depth Gages Built for Every Application
A standard digital depth gage puts a numeric readout right at the point of measurement, removing the guesswork of interpolating between graduation lines. An electronic depth gage in a compact, handheld format is the go-to choice for everyday shop checks on holes, steps, and recessed features.
For inspection teams that need advanced electronic measurement and data collection, the Mitutoyo Digimatic Depth Gages Series 571 offers models with SPC data output, inch/mm conversion on applicable models, automatic power functions, and ranges extending well beyond standard handheld depth gages.
The Series 571 also includes models designed for coolant-heavy environments. For example, the Mitutoyo ABSOLUTE Digimatic Depth Gage 0–150 mm features IP67 coolant-proof protection, a hardened and micro-lapped base and measuring faces, data output, and a 0.01 mm resolution.
Browse our full depth gages lineup for dial, vernier, and rule options alongside our electronic models.
Electronic Depth Gauging Trends Shaping the Shop Floor
As American manufacturing pushes toward tighter tolerances and fully documented inspection records, electronic depth gage design continues to evolve.
- Data Output Integration: Shops are standardizing on depth gages with SPC data output, feeding readings directly into quality records without manual transcription.
- Sealed, Wash-Down-Rated Construction: IP67-rated sealing is becoming a baseline expectation on gages used around coolant, dust, and washdown environments, not just a premium feature.
- Extended-Range Rod Systems: Interchangeable rod sets are pushing measurement range further, letting one gage body handle both shallow and deep-bore applications.
- Auto Power-Off and Battery Life Improvements: Longer battery life and smarter power management are cutting the downtime caused by dead batteries mid-shift.
- Digital/Analog Hybrid Models: Some manufacturers now offer depth gages with both a digital display and a mechanical backup scale, giving inspectors a fallback if the electronics fail.
Digital Depth Gage vs. Dial Depth Gage: Which Fits Your Shop?
The choice often comes down to preference, application, and working environment. Digital depth gages provide a fast, unambiguous numeric readout and convenient unit conversion on compatible models, which helps on jobs that call for frequent metric/imperial switching or direct data logging.
Dial depth gages, by contrast, need no battery and let inspectors watch the measurement build directly on the dial, a plus for shops that prefer traditional mechanical measurement or work in conditions where batteries are inconvenient. Both styles deliver reliable readings when properly selected, calibrated, and used.
Precision Measurement Tools Built for Demanding Shop Floors
A depth reading taken by eye or with a worn instrument rarely fails on the spot; it shows up later as a part that doesn't seat or a coating that wears through early. Keeping an accurate electronic depth gage on the bench catches that gap before it becomes a comeback.
50+ years in precision instrumentation shaped how we stock this category, and it carries through the rest of our gaging lineup too; every gage is built to give a reading your team can stand behind, job after job.
