CARBIDE THREADING INSERTS FOR OIL PIPES

SPECIFICATION：4 TEETH/PER INCH, 5 TEETH/PER INCH,

                                  8 TEETH/PER INCH, 10 TEETH/PER INCH

SHAPE OF TEETH: ROUND THREAD, BUTTRESS THREAD

APPEARANCE: TiN, TiCN, Al2O3 COATED