Taps 1)Material: Carbon steel, alloy steel, HSS, HW 2)According to the stardards of ISO, JIS, ... DIN, etc. Taps1)Material: Carbon steel, alloy steel, HSS, HW 2)According to the stardards of ISO, JIS, DIN ... recommend both sizes, distinguishing between both.On the larger size taps, we are showing annular cutters as a tap drill. ... also suggest calling first to discuss your particular application Taps