Общий каталог Yamawa 2022 - 2023 - страница 328

③ Spiral Pointed Tap Series for through 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 IPO Spiral Fluted Taps (for blind hole) ① JIS Spiral Pointed 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 IPO ●IPO is the best tap for through holes to be used with lower ●Start tapping after boring holes corresponding to the thread Cemented Carbide Taps ⑤ cutting speed on drilling machines. size by using drills. ●Use for threading of the iron（SPC or SS400）products used ●In the case of tapping with drilling machines, recommended in our daily life. tapping speed is slower than 5m/min. ●Surface treated. Oxidization, the most suitable surface ●During tapping, please use tapping oil. treatment for iron products. Roll Taps ●Suitable for internal thread ⑥ cutting in small quantity, such as tapping of test pieces. ●Having spiral points in the chamfer portion, IPO ejects chips forward in the tapping direction Special Thread Taps Simple Inspection Tools ⑦ and is for through hole use. Tapping for through holes When hand tapping, always Machine tapping with drilling use tap wrench machine Pipe Taps ⑧ ■Table for bored and drilled hole sizes unit：mm Minor Diameter of Internal Thread Size Thread Size Minimum Maximum Tolerance Drill Size Engagement Tolerance 6H (2nd Class) 7H (3rd Class) 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%） Thread Mills Premium Thread Mills M5 × 0.8 ⑨ 4.134 4.344 4.384 4.3（4.2） 81%（92%） 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%） note1)  Recommended drill sizes shown in this table are for internal threads of 7H class（3rd class), and are selected from the standard drills available in the market. Dies note2) Drill sizes shown in brackets in this table are for such case as the drilling has oversize cutting tendency or for internal threads of 6H class（2nd class). ⑩ 【Related products】 Shank adjuster ●For deep hole tappings, please use shank adjusters. ●There is only a one touch motion required to detach and attach the I series taps (IHT/ISP/IPO) from or to the shank adjuster. Center Drills Centering Tools ＊For details of shank adjuster, refer to ⑦-77 ⑪ JIS Obtainable from ③-31 video site shown in right