VAN KEUREN CO THREAD PLUG GAGE 1/4-18 NPT-l1 Has very light cosmetic scratches on the handle A Van Keuren Co. thread plug gage 1/4-18 NPT-L1 is a precision inspection tool used to verify the dimensional accuracy and compliance of internal pipe threads cut to 1/4 inch nominal size, 18 threads per inch (NPT standard), specifically the L1 (basic) feature for taper and pitch diameter. Key details: Type: L1 plug gage for NPT threads (National Pipe Taper) Size: 1/4-18 NPT Application: Used to check the depth and thread profile by inserting into the part until hand tight; the notch on the gage should be flush (within 1 turn) to the entry point of the thread to confirm compliance. Inspection Standard: ASME B1.20.1 Brand: Van Keuren Co. is a recognized supplier for highly precise thread gages. We are wholesaler/liquidators. We bought this in a lot of new items to resell. Our knowledge of this item is very limited. We are counting upon you to know what you are buying and if this item will suit your needs. This is being sold AS-IS. No returns. Please only purchase this if you agree to those terms. shelf: 21 box 1 LB/AP