1.Threading hand tap, hss form taps, carbon steel taps, handle drill tap 2.Thread type:M,UNC,BSW 3.can be customize ... Our factory specialize in manufacturing all types of cutting & milling tools: hss tap, machine tap ... .00M56X5.50M60X5.50M64X6.00M68X6.00 ISO sprial hss machine tap and hand tap, tapping machine hand drill, hss hand taps with straight flute