Roll Tap Series Special Thread Taps / Simple Inspection Tools JIS LINE-UP INDEX N+RZ/ JIS JIS N-RZ RO-1 MS+RS ST-1 Thread Forming Taps for Steels Roll Taps for Miniature Threads JIS JIS LS-N-RZ RO-6 HPsRZ ST-1 Long Shank Thread Forming Taps for Steels High Performance Roll Taps for Miniature Threads N+RS/ JIS JIS N-RS RO-7 SIT ST-3 Thread Forming Taps for Non-Ferrous Materials Simple Thread Inspection Tools JIS SITD JIS LS-N-RS RO-13 (Tandem Type) ST-9 Long Shank Thread Forming Taps for Non-Ferrous Materials Simple Thread Inspection Tools, Tandem Type JIS JIS R+V RO-15 CPC-S ST-15 Thread Forming Taps, Coated Check Pins for Bored Hole in thread cut tapping (Straight Type) OL+RZ/ JIS JIS OL-RZ RO-17 CPC-T ST-17 Thread Forming Taps for Dry Tapping, Coated Check Pins for Bored Holes in thread cut tapping (Taper Type) HP+RZ/ JIS JIS HP-RZ RO-19 CPR-S ST-18 High Performance Thread Forming Taps, Coated Check Pins for Bored Hole in thread form tapping (Straight Type) JIS JIS SC-TL-RZ RO-23 CPR-T ST-20 Torqueless Thread Forming Taps with short chamfer Check Pins for Bored Holes in thread form tapping (Taper Type) JIS JIS SURZ RO-25 SA ST-22 SU Thread Forming Taps Shank Adjusters JIS DIN ANSI JIS MHRZ RO-27 TA ST-23 Roll Taps for Carbon Steels of Middle Hardness Tap Adapter Index-18 45