Digital Caliper 12 Inch Large LCD Screen Caliper Measuring Tool | Auto-Off Feature Electronic Vernier Caliper, Inch/MM/Fraction,Digital Ruler for 3D Printing/Jewelers/Woodworkers

A 12 inch digital caliper fills a gap that standard 6 inch calipers simply cannot cover, and once you work with a project that requires measuring longer spans with precision you quickly realize why the larger format exists. The HARDELL 12 inch digital caliper has become one of my more regularly used measuring tools and it has performed with accuracy and reliability across a wide range of applications in my shop. The first thing you notice when you open the packaging is the length of this tool. A 12 inch caliper is a significant instrument and the HARDELL version is built proportionally with a sturdy stainless steel beam that feels rigid and well finished. The jaw faces are flat and parallel and the sliding jaw moves smoothly along the beam without any slop or binding. The fit and finish throughout the tool communicates a level of quality that is appropriate for precise measurement work. The thumbscrew lock holds the sliding jaw securely in place when you need to transfer a measurement or record a reading without the jaw drifting. The LCD display is a genuine selling point on this model. The screen is large enough to read comfortably without squinting and the digits are clearly formed and well backlit in low lighting conditions. Switching between inch and millimeter measurement modes is a single button press and the zero reset function allows you to zero out the caliper at any position, which is useful for taking incremental measurements or doing comparison work against a reference piece. The battery access is straightforward and the caliper uses a standard watch battery that is easy to replace when needed. In actual use the caliper delivers consistent readings that match what I expect when cross checking against other calibrated instruments. I have used it for measuring material stock thickness, checking lumber dimensions, verifying cut lengths on workpieces, and doing layout work where I need to step off a measurement from an edge. The outside jaw measurement, inside jaw measurement, depth rod, and step measurement functions all work correctly and the depth rod in particular is useful for measuring blind holes, slot depths, and recess dimensions that you cannot access with the outside jaws. The 12 inch range does introduce a small amount of flex when the caliper is fully extended that you would not see in a shorter instrument, which is a physics reality rather than a design flaw. For applications where you need maximum accuracy at full extension, supporting both ends of the beam gives you the best results. For most shop measurement tasks within the first 8 to 10 inches the caliper is rock solid. The carrying case included with the HARDELL protects the tool during storage and transport and is a better case than what you typically see with budget calipers. The auto off function preserves battery life during extended storage periods. For anyone who needs a digital caliper in the 12 inch range for shop work, layout, or fabrication projects, the HARDELL delivers genuine precision at a price point that makes it accessible without sacrificing the accuracy you actually need.

I’m really impressed with this caliper. It feels very well made with durable materials not flimsy at all. It measures in mm, inches, and fractions, which is super useful depending on the project. The large digital display is easy to read, and it responds quickly and accurately. The zero button lets you reset at any position, which is great for relative measurements. Functionality-wise, it covers everything I need: inside, outside, depth, and step measurements — all smooth and precise. It came with two LR44 batteries, a sturdy hard case, and even a bonus stainless steel ruler marked in both cm and inches a really nice touch. I use it mainly for Fusion 360 design work, and the measurements have been spot-on with my 3D prints. I paid $30 USD, and they even gave me a discount coupon, which made it a real bargain for such a good-quality tool. If you're into 3D printing or any kind of precision work, this caliper is a great deal accurate, well-built, and affordable!

The HARDELL Digital Caliper is a high-quality measuring tool that is designed for precise and accurate measurements of small objects and components. With its stainless steel construction and large LCD screen, this caliper provides a reliable and convenient solution for a wide range of measurement needs. One of the standout features of the HARDELL Digital Caliper is its precise and accurate measuring capabilities, with a range of up to 6 inches and an accuracy of 0.01mm. This ensures that you can take precise and accurate measurements of small objects and components, even in tight spaces or difficult-to-reach areas. The caliper also features a durable and sturdy stainless steel construction, which ensures that it is built to last and can withstand frequent use. The large LCD screen provides clear and easy-to-read measurements, making it easy to take accurate measurements quickly and efficiently. Other features of the HARDELL Digital Caliper include a smooth and precise sliding mechanism, which ensures that the caliper moves smoothly and without sticking, as well as a convenient hold function, which allows you to lock the measurement in place for easy reading. Overall, the HARDELL Digital Caliper is a great choice for anyone who needs a reliable and accurate measuring tool for small objects and components. With its precise and accurate measuring capabilities, durable stainless steel construction, and convenient LCD screen and hold function, this caliper provides a reliable and efficient solution for a wide range of measurement needs.

Very nice, well built caliper. Feels solid and operates very smoothly with readings in your choice of mm, decimal inches or fractional, making it very useful for machine work as well as woodworking or any application in which a fractional result is preferred. Uses readily available button batteries and includes two, along with a small screwdriver for changing them. An adequate plastic storage case is also provided. My senior brain wishes it had fractional rounding capability, to sixteenths, eighths etc.

The 12" digital caliper is an indispensable tool for anyone needing accurate and reliable measurements, whether you're in metalworking, woodturning, 3D printing, or general DIY projects. Its durable stainless steel construction ensures longevity, while the large LCD screen provides clear, easy-to-read measurements in metric, imperial, and fractional formats. What sets this caliper apart is its versatility. The 12" length accommodates larger projects while maintaining the precision required for delicate tasks, with an impressive accuracy of ±0.001". The smooth glide of the jaws and the ergonomic thumb roller make adjustments effortless. A zeroing function allows for differential measurements, and the auto-off feature conserves battery life, which is a thoughtful touch for frequent users. This caliper also includes a protective case to keep it safe during transport or storage, ensuring it stays in top condition. Whether you're a professional or a dedicated hobbyist, this tool offers excellent value and performance. It’s a game-changer for anyone who prioritizes precision and efficiency in their work. Pros: High accuracy and versatility Clear LCD display Durable stainless steel build Convenient zeroing function and auto-off feature Cons: Slightly heavier than smaller calipers, which might take getting used to Overall, this 12" digital caliper is a worthy investment for anyone looking to elevate their craftsmanship with precise, dependable measurements.

This is a solid good basic digital caliper. It is easy to use and most importantly appears to be accurate and repeatable. It comes with a no frills plastic rotomolded case that protects the calipers. It also includes a micro screw driver to remove the crews retaining the cover over the replaceable battery. It uses one AG13/LR44 battery and comes with 2 new sealed batteries. The 3 buttons include: - mm / inch - Simply toggle between mm and inches. The resolution is 1/100th of a mm and 1/2000th of an inch. - On / Off - The power actually comes on when you open the jaws. It also has an auto-off so it turns off after not moving the jaws for 5 minutes. Or just use the button to turn it on or off. - Zero - Press to zero out the display so not only can you reset the measurement to zero with the jaws closed, but with the jaws opening, you can get difference measurements, since the display will show negative values after zeroing the display with the jaws open, when closing the jaws. The numbers on the LCD display are large and easy to read. The decimal point however is tiny and you are bvetter served by learning to know where it appears, since that is consistent for mm and separately for in measurements. There is also no backlight for the LCD, but this is to be expected on a basic caliper. The lock holds the measurement in place with no noticeable rocking. The case, while, doing the job of protecting the caliper, is the least functional part of the package. While it protects the caliper, the included screw driver does not stay in the compartment which appears to have been designed for it, so it rolls around the case. Although there are places for an unsealed battery to sit in the case, I am certain that if I put an unsealed battery in one of those compartments, I would lose it every time that I open the case. On the bright side, I made some modifications to the case and they work like a champ. I drilled a small home in the left-most end of the compartment for the screw driver, so the shaft of the screw driver is now retained firmly. Also, in the center of the case, in the same screw driver compartment, I cut a slot so a sealed replacement battery with cardboard backing can sit securely in the slot and not fall out. All-in-all, a quality basic product.

very accurate ! work well and seem too nice for the price. no complaints here.

I couldn’t be more pleased with this HARDELL 8-inch digital caliper—especially given how critical precise measurements are in my laser-engraving work. First impressions? It’s solidly built and pleasantly weighty, giving it that dependable, professional feel—yet not so heavy that it slows you down. You can handle it easily and quickly, sliding it into position without fumbling or fatigue. The accuracy is exceptional—exactly what I need when aligning materials for engraving (laser engraving goes by millimeters so it has to be dead-on). The clear and stable readouts mean I trust every fractional or millimeter measurement when lining up artwork or verifying depth and thickness. It’s reliable enough that I’ve recommended it to fellow makers and friends already—and everyone is equally impressed. What You’ll Love: Built like a tank, but easy to handle—just the right heft. Rock-solid measurement precision—no guesswork in positioning or alignment. Perfect for laser engraving—I use it daily to ensure every cut or etch on my laser engraver is spot-on. Highly recommended—I’ve already talked about this caliper to others and they ordered as well. They own other brands as well and were a bit surprised. If you're into precision crafting, 3D printing, machining, or any work where accuracy matters—especially laser engraving—this caliper is a no-brainer.

Do not order ! False information !! Supposed to be Waterproof !! Purchased on 9th August, used 3 time since there and the screen got flooded ! Worst product ever !!