Comprehensive Thread Measurement: Includes 16 pieces with thread sizes ranging from 1 inch to 12 inches, ensuring precise measurement for various applications. Sturdy Steel Construction: Crafted from solid carbon steel, offering exceptional durability and longevity. Versatile Functionality: Accurately measures both internal and external screw threads, making it ideal for a wide range of threading tasks. Laser Engraved Scale: Features a laser engraved scale that resists wear, ensuring clear and long-lasting readings. Precision Tool for Cutters: Essential for those involved in thread cutting, providing accurate thread gauging to assist in precision work. QWORK