Manufactured from alloy steel. Manufactured from high quality Alloy Steel with split dies for precision threading. T-bar tap holder; 2 x die holder 25mm (1") dia & 38mm (1 1/2" dia). 2 x adjustable tap holders M6 - M20 (1/4" - 3/4") & M3 - M12 (1/16" - 1/2").
