Specification Brand : M & J Tooling LLC BulletPoint1 : Width gauge:the stainless steel feeler gauge, straight ruler has accurate and clear markings, providing a satisfying user experience,width measuring tool BulletPoint2 : Feeler gauges for gap measuring:sturdy materials made, the feeler gauge set is not easily deformed or broken and can be used for a long period of time,width measuring tools BulletPoint3 : Stainless steel feeler gauge:suitable for measuring thickness of tappet clearances, piston ring gaps, bearing clearances, and other hard-to-reach areas,valve thickness gauge BulletPoint4 : Straight ruler and feeler gauge:the precision machining technology used in this feeler gauge set ensures accurate measurement of gap sizes,thickness measuring tools BulletPoint5 : Gap width measuring tool:this versatile feeler gauge and ruler can be used by carpenters, engineers, DIY enthusiasts, and more,stainless steel measuring tools Color : Silver ItemDisplayWeight : 0.07 pounds ItemName : New 1/4 24 UNS 2A Solid Thread Ring GAGES .25 GO NO GO P.D.'S = .2218 & .2181 - DW33380MJ ItemPackageDimensions_Height : 0.79 inches ItemPackageDimensions_Length : 7.48 inches ItemPackageDimensions_Width : 0.79 inches ItemTypeKeyword : thread-gauges Manufacturer : M & J Tooling LLC Material : stainless steel ModelNumber : 43K34ZDDGDX37X21B1VHB NumberOfItems : 1 PartNumber : DW33380MJ ProductDescription : YOU ARE PURCHASING THE PICTURED RIGHT HANDSOLID THREAD RINGGAGES.