Material: alloy tool steel, HSS and HSS-CO Manufacturing process: cut thread, ground and fully ground Flute: straight flutes, HSS taps:Material: alloy tool steel, HSS and HSS-COManufacturing process: cut thread, ground and fully groundFlute: straight flutes, straight flutes with spiral point, spiral flutes and flute lessStandards: DIN, JIS, BS, ANSI and ISOSize: M1-M68, no 5-40UNC-1-8UNC and no 5 ...