Hey DIYers and mechanics, this screw pitch gauge is one of those tools you don't realize you need until you have it - then you wonder how you ever managed without! The set comes with 51 individual leaves that cover thread pitches from 4 to 84 TPI, which means you can identify pretty much any screw or bolt you come across. Each leaf is clearly marked with its thread count, so there's no guessing involved. The build quality is solid - the leaves are made of durable steel that won't bend or warp with normal use, and they're neatly organized on a rotating hub that makes finding the right one super easy. I've used this for everything from identifying mystery bolts in my workshop to checking thread pitches on automotive parts and plumbing fittings. It's become one of those go-to tools that lives right on my workbench because it's so handy. The compact size means it doesn't take up much space, but it saves you from so much frustration when you're trying to match up threads. Whether you're a professional mechanic or a weekend warrior, having this gauge means you'll never have to eyeball thread matches again. It's perfect for layout work, setup tasks, checking depths, and setting angles - basically all the measuring jobs that make projects go smoothly. For the price, it's an absolute steal that will save you time and headaches on countless projects.