I took many photos of this please use sight and its old stock not used condition has a bit of surface rust will not ruin the ability to do what it's supposed to do.
The UNION BUTTERFIELD GH4 1-1/3 i1c7 HSG 963 USA THREAD TAP NOS is a high-quality hand tap manufactured by Union Butterfield in the USA. This tap is designed for metalworking applications and has a cutting diameter of 1.375 inches. The material used for this tap is HSG, and it does not have any coating. This product is perfect for professionals in the CNC, metalworking, and manufacturing industries who need precision threading tools.