44-Piece Thread Checker & Gauge - Identify Metric & Standard Bolt Sizes | CNC Aluminum, Inch/CM Ruler, Wall Mountable

About This Product

Ever found a random bolt and had no clue what size it is? This thread checker solves that problem fast! It has 44 different sizes—22 metric (from M3x0.5 to M24x3.0) and 22 standard (like 1-12 fine to 8-32 coarse). Just match your bolt or nut to the right slot, and you've got your answer. Made from tough CNC-machined aluminum and stainless steel, it's super durable and smooth to use. Plus, it has a ruler on both sides (6 inches and 15 cm) for quick measurements. You can even mount it on the wall to keep your workshop tidy. Perfect for DIYers, mechanics, or anyone who tinkers with tools. No more guessing—just accurate, easy identification every time!