M 18 -Tap-Rek A-H -High Tensile-TICN
Axial coolant fed to maximize chip evacuation and improve thread quality
DIN/DIN standard dimensions for overall length and shank size
NT - nitride surface treatment for increased wear resistance
Rekord A-H is a straight flute design best suited for short chipping, high tensile strength materials (cast iron & hardened steels).