If you're into woodworking or metalworking, these setup blocks are about to become your new best friends. This 15-piece set comes in all these useful sizes: 1/16\\\, 3/32\\\, 1/8\\\, 5/32\\\, 3/16\\\, 7/32\\\, 1/4\\\, 5/16\\\, 3/8\\\, 7/16\\\, 15/32\\\, 1/2\\\, 23/32\\\, 3/4\\\, plus a 1x2x3 block. They're all 3 inches long and made from solid aluminum alloy - lightweight but seriously durable. The laser engraving is super clear and won't wear off, so you can quickly grab the size you need without squinting or guessing. What's awesome is how you can combine them to create hundreds of different measurements for your table saw, router, or other tools. No more fiddling with rulers or making rough estimates - just stack the blocks you need and you've got your exact height or distance set. They're corrosion resistant and stiff enough to handle regular use without wearing out. Perfect for setting blade heights, fence distances, or any precision measurement work in your shop. The black finish looks professional and the accuracy is within 0.001\\\, which is pretty impressive for shop tools. Whether you're a hobbyist or professional, these setup blocks will save you so much time and frustration. Way faster and more accurate than trying to use a combination square or ruler for repeated measurements. Definitely one of those 'why didn't I get these sooner' kind of tools!