Choosing calibration equipment for a shop often comes down to a simple question: do you buy a matched, ready-to-use set or take a chance on a mixed lot that costs less? The 23pcs LOT OF MISC. GAGE BLOCKS & OTHER INSPECTION / CALIBRATION EQUIPMENT, listed at USD 49.99 by M & J Tooling LLC in Dayton, Ohio, sits right in the middle of that decision. It is a used, miscellaneous grouping that includes gage blocks plus other inspection/calibration items, sold exactly as shown in the listing photos.
Quick verdict
If you need a low-cost way to add a variety of gage blocks and related inspection tools to your bench, this lot is worth a close look. The price is reasonable for a mixed set, and because the assortment is miscellaneous, you are likely to get a range of sizes and brands. The catch is that this is a used lot, so the pieces may show wear. You are buying the pictured collection, not a matched or certified set.
Who it suits
This lot makes sense for a shop or hobbyist who already has a known-good reference set and wants spare or supplemental pieces for setup, comparison, or layout work. It also suits someone who enjoys sorting through used tooling. If your work requires formal calibration traceability, this is not the direction to go; you would want a set with explicit calibration statements for that kind of work.
What stands out from the listed details
The price is the main draw. At USD 49.99, you get a lot of gage blocks and other inspection/calibration equipment from various manufacturers, all in used condition. The title flags "MISC." and "OTHER INSPECTION / CALIBRATION EQUIPMENT," which tells you the lot includes more than just gage blocks. The "23pcs" in the title gives you a total piece count. The listing directs you to the pictures for size and labeling details, so the photos serve as the real spec sheet. The seller is M & J Tooling LLC in Dayton, Ohio, and you are purchasing the pictured items.
Meaningful trade-offs
With a mixed used lot, the trade-off is predictability. A matched gage block set gives you known sizes, a consistent grade, and a purpose-built case. This lot gives you a lower entry price and variety, but you trade away the convenience of a curated kit. You will need to inspect each piece for wear, rust, nicks, or burrs before relying on it for measurement. The photos are the practical guide to what is included, since the listing does not otherwise itemize the contents.
Bottom line
For a shopper who wants to build out a calibration accessory collection on a budget, this lot at its listed price is a sensible project buy. Spend some time sorting and checking the pieces, and you'll likely end up with useful reference blocks and tools. If you need a certified, ready-to-use set for precision calibration work, keep looking for something that explicitly offers that. For everyone else, this used lot gives you a lot of pieces to work with at a straightforward price.
23pcs LOT OF MISC. GAGE BLOCKS & OTHER INSPECTION / CALIBRATION EQUIPMENT
Listed by M & J Tooling LLC, this used assortment combines gage blocks with other inspection/calibration equipment in one lot. The reason to choose it is the mix: you get a variety of pieces from various manufacturers in a single purchase. The limitation is the used condition and the "misc." nature of the set, which means you will need to sort through the items and check them for wear before use. Because the listing says you are purchasing the pictured items, the photos are your best guide to what's actually in the box.
