For all you mechanics, machinists, and DIY enthusiasts working with screws and threads, this Utoolmart pitch gauge is one of those tools that seems simple but saves you tons of frustration. Made from solid 304 stainless steel, so it's tough enough to handle workshop use without rusting or wearing out quickly. The 60-degree angle is perfect for measuring most standard screw threads you'll encounter. The laser-engraved markings are super clear and won't rub off over time like printed ones would. What's really handy is it works for both internal AND external threads - so you can check the pitch on bolts, screws, or even threaded holes to make sure you're using the right size. If you're cutting threads on a metal lathe, this is invaluable for checking your tool angle against the V-groove on the gauge to ensure perfect threads every time. The increments are precise at 0.1mm and 0.05mm, so you can get accurate measurements for both coarse and fine threads. It's compact enough to toss in your toolbox but substantial enough to feel quality in your hand. Whether you're identifying unknown threads, quality checking manufactured parts, or setting up your lathe for thread cutting, this little tool takes the guesswork out of the equation. Much better than trying to eyeball thread spacing or using makeshift methods that never seem to work right. For the price, the quality is seriously impressive - way better than those cheap stamped metal gauges that bend easily. If you work with threaded fasteners regularly, this is one of those 'why didn't I get this sooner' tools that quickly becomes indispensable.