🔧 Toolly Ultra Precision 1-2-3" Blocks 2pcs/Pair - High Accuracy 0.0001" - Made of Hardened Steel - Includes Plastic Case Review

These calibration blocks are a game-changer for my industrial and scientific needs. After I put them to the test, I was impressed with the accurate measurements that I received, and the durable hardened plastic material made them withstand daily wear and tear. The blocks come in a range of sizes and are easy to read, providing convenience and speed for any project. The only drawback was the price, but the quality of the product outweighs the cost.

Product was ok. The box was awful. I've never managed to close the latches. I went through it and made my own. There are a ton of 123 blocks on the market, I wanted one that came in a box.

1-2-3 blocks come in handy for any shop work. Blocks in a plastic box protect against dents and dents. These blocks are affordable. They come boxed and coated to prevent rusting. It's nice to have cap screws and an Allen wrench to tighten the screws. It's a good addition to any handyman's tool kit