For dimensional metrology machine inspection, choosing between two Mitutoyo digital calipers often comes down to how large your parts are and whether you need data output. The right choice depends on the maximum dimension you measure and whether your process requires digital data capture. These are the two most common decision points for machinists and quality inspectors. Both models share the same 0.0005-inch resolution, Absolute digital technology, and four-way measuring capability for outside, inside, depth, and step. The split is in the range, SPC output, protection rating, and price.
Quick verdict: Pick the 300mm model if you need a longer measuring range. Pick the 150mm model if your parts are smaller and you prefer the lower price.
| Model | Price | Max measurement | SPC output | IP rating | Price level |
|---|---|---|---|---|---|
| Mitutoyo 500-193-30 (300mm/12") | $80.00 | 12 in | SPC | IP54 | |
| Mitutoyo 500-196-30 (150mm/6") | $48.39 | 6 in | None | - |
The measurement range drives the first decision. The two models offer different maximum measurement ranges. Both calipers read down to 0 inches and display a resolution of 0.0005 inches, so they deliver the same level of detail in their readings. Where they separate is in data handling and protection, as the table shows. Shops that need collected data will see a clear difference; those reading measurements directly may not. If you're measuring the same small components all day, the shorter range is often enough; if your jobs vary widely in size, the 12-inch model gives you more headroom.
Where each product wins
- Mitutoyo 500-193-30: The choice for longer workpieces and for shops that plan to record measurements digitally.
- Mitutoyo 500-196-30: The choice for smaller parts and for buyers who want the lower price.
Mitutoyo 500-193-30 (300mm/12")
This caliper's 12-inch maximum measurement makes it the one to reach for when inspecting longer shafts, larger bores, or parts that extend beyond the range of a shorter tool. It features SPC output and an IP54 rating, so it fits into data-collection workflows and shop environments where those specifications matter. The large, easy-to-read digital LCD display is a practical feature for quick measurement reading. The trade-off is the higher price; if your typical parts are small, the extra range and data capability may not earn their keep. It's a solid choice for a shop floor where measuring needs can change from one job to the next.
Mitutoyo 500-196-30 (150mm/6")
With a 6-inch maximum measurement, this caliper fits neatly into tasks that involve smaller components. The four-way measuring functions for outside, inside, depth, and step are all included. Its lower price is a key consideration for shops that want a Mitutoyo digital caliper without paying for the larger model's extra range. It is built with premium stainless steel, which adds to its durability. For many small-part inspections, the 6-inch range is sufficient, and the caliper's compact size makes it easy to handle. For parts that exceed 6 inches, a longer caliper would be required.
Final choice by use case
Choose the 500-193-30 when your inspection work needs the longer measuring range. Choose the 500-196-30 when the shorter measuring range suits your parts and you prefer the lower price. That way, you get the measuring capability you actually need without paying for features you won't use.
