( 1 ) High-Quality Extension Tap from REGAL CUTTING TOOLS is perfect for those in the metalworking industry. With a tap thread size of M12 x 1.75 and 4 Flutes, it is designed for efficient and precise cutting. Made in the United States, it is a reliable choice for those in need of a durable and reliable tap for its superior performance. Plug, 6" Overall Length, 1-21/32" Thread Length, 6H Class of Fit.  REGAL CUTTING TOOLS MPN: 027276AS      MSC PART NUMBER: 58888165