Threading Tools Manufacturing Scenary Quality checking and inspection for raw material checking outerdiameter,overlenght, blank threadsparttcheckingouter diamter,thickness,centralhole, bymicrometer Milling & Rough Grinding Marking & Forging Drilling & Cutting Mill the square head; Milling the flutes; Milling the anchor slot; Milling threadsGrind the shank, blank thread part, blank die surface, thread part surface, burs, outer round surface, cutting flute rake angle, and the chamferRoll Mark the symbols and textForge the threads partDrill the scrap-ejecting hole and the side holeCut off the burs in the scrap-ejecting holes and the flute rake angle Threading Tools Series Tap Die Tool holder Sets