This OSG 1310801 1-1/4" 11-1/2" NPT thread 5 flute 1 to 3-1/2" chamfer stand pipe tap is a cutting/tool-holding tool in industrial equipment. It serves as the cutting or holding element on a lathe, mill, or drill press during precision metalworking. Key specifications noted on this listing include NPT, 5 Flute. It is commonly in toolrooms and metal fabrication shops.
