ANSI LINE-UP INDEX Spiral Fluted Tap Series for blind hole Spiral Fluted Tap Series for through hole ANSI ANSI ISP SP-1 ZELX TI LHSP SL-1 Spiral Fluted Taps for General Purpose Spiral Fluted Taps for Titanium Alloys, Through Hole Use(with LH spiral flutes) ANSI ANSI SP SP-2 ZELX FR LHSP SL-3 Spiral Fluted Taps Spiral Fluted Taps for High Speed Tapping, Through Hole Use (with LH spiral flutes) ANSI ANSI SP OX SP-6 MHSL SL-4 Spiral Fluted Taps, Oxided Spiral Fluted Taps for Carbon Steels of middle hardness, Through Hole Use (with LH spiral flutes) ANSI SP SP-9 Spiral Fluted Taps for Alloy Steels ANSI LO-SP SP-10 Spiral Pointed Tap Series Low Spiral Fluted Taps for Alloy Steels ANSI ANSI AU+SP SP-11 IPO PO-1 Plus Series Spiral Fluted Taps, Coated Spiral Pointed Taps for General Purpose ZELX SS ANSI ANSI SP SP-12 PO PO-2 Spiral Fluted Taps for Stainless Steels Spiral Pointed Taps ZELX SS ANSI ANSI SP 6" SP-17 PO OX PO-5 Long Shank Spiral Fluted Taps for Stainless Steels Spiral Pointed Taps, Oxided ZELX AL ANSI ZELX SS ANSI SP SP-18 PO PO-8 Spiral Fluted Taps for Aluminum Spiral Pointed Taps for Stainless Steels ZELX ALS ANSI ZELX SS ANSI SP SP-20 PO 6" PO-12 Spiral Fluted Taps for Aluminum Long Shank Spiral Pointed Taps for Stainless Steels ANSI ZELX AL ANSI SP STI SP-22 PO PO-13 Spiral Fluted Taps for Helical Coil Wire Screw Thread Inserts Spiral Pointed Taps for Aluminum ANSI ANSI SP OX STI SP-24 PO STI PO-15 Spiral Fluted Taps for Helical Coil Wire Screw Thread Inserts, Oxided Spiral Pointed Taps for Helical Coil Wire Screw Thread Inserts ZELX TI ANSI ANSI SP SP-26 PO OX STI PO-17 Spiral Fluted Taps for Titanium Alloys Spiral Pointed Taps for Helical Coil Wire Screw Thread Inserts, Oxided ZELX NI ANSI ZELX NI ANSI SP SP-28 PO PO-19 Spiral Fluted Taps for Nickel Base Alloys Spiral Pointed Taps for Nickel Base Alloys ZELX NI ANSI ZELX NI ANSI SP STI SP-31 PO STI PO-22 Spiral Fluted Taps for Nickel Base Alloys, for Helical Coil Wire Screw Thread Inserts Spiral Pointed Taps for Nickel Base Alloys for Helical Coil Wire Screw Thread Inserts ANSI ZELX FR SP-33 Spiral Fluted Taps for High Speed Tapping Index-3 40