Introducing the Assorts British Whitworth BSW & Metric Screws Bolts Pitch Measure Thread Gauge, featuring 51 precision blades for comprehensive thread size checking of various screws and bolts. This essential tool includes 55-degree British Whitworth (BSW) and 60-degree metric thread pitch gauges, ensuring accurate measurement of both internal and external screw threads. Each of the 51 blades is meticulously stamped with precisely formed thread profiles, guaranteeing reliable and consistent measurements across different thread types and sizes. Whether you're working with classic British Whitworth standards or modern metric threads, this gauge provides versatility and precision for workshop professionals and enthusiasts alike. Designed for durability and ease of use, it facilitates quick identification and verification of thread pitches, making it indispensable for maintenance, repair, and fabrication tasks where thread compatibility and accuracy are critical.