
⑥ Roll Tap Series Overall length L Thread length ℓ Thread + Neck length ℓn Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk JIS OL+RZ Spiral Fluted Taps (for blind hole) ① JIS OL- RZ Roll Taps for Dry Tapping, Coated Spiral Fluted Taps (for through hole) ② Specification ・The product symbol is divided by nominal sizes. <1D Coating OL+RZ all M OL−RZ all U Spiral Pointed Taps (for through hole) ③ Recommended Tapping Speeds depending on Materials Low carbon steels Medium carbon steels High carbon steels Alloy steels Thermal refined steels Stainless steels Aluminum alloy castings 低炭素鋼 中炭素鋼 高炭素鋼 合金鋼 調質鋼 ステンレス鋼 アルミ合金鋳物 15 30 15 30 15 25 15 25 15 25 10 25 15 30 〜 〜 〜 〜 〜 〜 〜 Hand Taps ( m / min ) ( m / min ) ( m / min ) ( m / min ) ( m / min ) ( m / min ) ( m / min ) ④ 25〜35HRC Product Features ●The OL+RZ/OL-RZ roll taps have made it possible tapping without lubrication in the sizes M6 and smaller. These taps are designed for thin steel sheet screw threads or steel with a relatively short screw thread length. Cemented Carbide Taps ●Increased shank accuracy and an optimum lobe portion design produces a smooth thread forming action and the internal thread ⑤ accuracy is stabilized even under severe conditions. ●For blind hole tapping, please select the HP + RZ / HP-RZ tap series as an alternative item. Tapping Data Roll Taps Processing conditions [M6 × 1 G7P] ⑥ Tap Type OL+RZ, conventional product OL+RZ Workpiece Material Rolled steel plate(SPCC) Can Continue Bored Hole Size φ5.55 Tapping Length 4mm through hole Conventional Product Tapping Speed 15m/min Special Thread Taps Simple Inspection Tools 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 ⑦ Machinery Type Tapping machine (Number of holes processed) Tapping Fluid Completely dry Pipe Taps ⑧ Market Data Processed Bored Tapping Tapping Hole Machine Tapping Market Case № Size Class Workpiece Depth Speed Diameter Type Fluid Evaluation Material (mm) (mm) (m/min) Thread Mills Premium Thread Mills 9,000 holes processed. ⑨ 1 M3×0.5 G5 SPCC φ2.75 6 12 CNC machine Mist Good surface finish 15,000 holes processed. 2 M6×1 G7 SPCC φ5.55 4 15 Tapping machine Mist Good workability. Water 200,000 holes processed. 3 M1.7×0.35 G5 SS400 φ1.53 1.3 15 Tapping machine soluble Competitor 100,000 holes. Dies ⑩ Water 7,000 holes processed. 4 M3×0.5 G5 SUS304 φ2.79 5 15 Special machine soluble Good workability. Vertical Water 5,000 holes processed. 5 M6×1 G7 SS400 φ5.53 12 50 machining center soluble Competitors 1,000 holes. Center Drills Centering Tools ⑪ JIS ⑥-41