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 ... between both.On the larger size taps, we are showing annular cutters as a tap drill. THESE ARE ONLY RECOMMENDED FOR THROUGH ...