Features: Achieve precise thread measurement with the chgimposs screw gauge set, featuring both metric scale for multifunctional industrial applications. Crafted from stainless steel, this screw gauge is corrosion resistant and durability, with clear marking for easy readability and a lock up device for secure measurements. For mechanical engineers, maintenance technicians, DIYer enthusiasts, and professional requiring accurate thread assessments. Perfectly suited for use in machine shops, equipment maintenance, automotive repairs, and home DIYer projects, ensuring reliable thread measurement everytimes. This portable and comprehensive 40piece set includes gauges for metric, and us standards, making it a essential tool for any precise measurement toolkit. Specifications: Component:Stainless Steel Quantity:40pcs/set Size:As Picture Shown Package Includes: 40Piece/set Screw Thread Gauge note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.