① Spiral Fluted Tap Series for blind hole Overall length L Thread length ℓ Thread + Neck ℓn length Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk JIS ISP Spiral Fluted Taps (for blind hole) ① JIS Spiral Fluted Taps for General Purpose Spiral Fluted Taps (for through hole) ② Specification M10×1.5 UNC Chamfer: 5P Tap dril size 8.5mm(ref.) <2D Spiral Pointed Taps (for through hole) Oxide ③ Recommended Tapping Speeds depending on Materials Low carbon steels 低炭素鋼 〜 5 Hand Taps ( m / min ) ④ Blister Pack Product Features How to Use ●The IPS is for a blind hole and mainly used for low speed ●First create the workpiece bore diameter with a drill that Cemented Carbide Taps machining on a drilling machine. matches the screw thread size minor diameter, and then ⑤ ●Use the IPS for tapping iron products like SPC and SS400 start the tapping. where there are a small quantities of threads. ●Please use a cutting speed of 5 m/min or less. ●The ISP has an ideal oxidation surface treatment for ●When tapping, please use a cutting oil. tapping iron materials. ●The ISP is ideal for small Roll Taps quantity tapping components ⑥ such as prototype non- production parts. ●The ISP has spiral flutes to discharge the chips back out of the hole. ●Please use the ISP for tapping Special Thread Taps Simple Inspection Tools of blind holes. ⑦ Chips from a tapped hole. Hand tapping using a tap Machining with a drilling handle. machine. Pipe Taps ■Thread bored hole diameter table. Unit: mm ⑧ Internal Thread Diameter Percentage of Thread Size Minimum Allowable Maximum Allowable Bored Hole. Drill Diameter Thread Bored Hole. 6H(Level 2) 7H(Level 3) M3 × 0.5 2.459 2.599 2.639 2.6(2.5) 74%(92%) M4 × 0.7 3.242 3.422 3.466 3.4(3.3) 79%(92%) M5 × 0.8 4.134 4.344 4.384 4.3(4.2) 81%(92%) Thread Mills Premium Thread Mills ⑨ M6 × 1 4.917 5.153 5.217 5.1(5.0) 83%(92%) M8 × 1.25 6.647 6.912 6.982 6.9(6.8) 91%(89%) M10 × 1.5 8.376 8.676 8.751 8.6(8.5) 86%(92%) Note 1) Recommended bored hole size in this table is for 7H (3rd grade) internal thread, selected from commercially available standard drills. Note 2) The size of the drill in parentheses is used for cases where the drill cutting oversize is too Dies large or for 6H (2nd grade) internal thread processing. ⑩ 【Related Products】 Shank Adjuster ●Use the shank adjuster when tapping into deep holes. ●The I series (IHT / ISP / IPO) can be detached from the shank adjuster with one touch. Center Drills Centering Tools * For details on shank adjusters,refer to ⑦-77. ⑪ You can also see it JIS from the video site on ①-59 the right.