
Oxide
ow carbon steels
Product features How to use ISP
cutting speed with drilling machines. size by using drills.
our daily life. tapping speed is slower than 5m/min.
treatment for iron products.
Tapping for blind holes When hand tapping, always Machine tapping with drilling use tap wrench machine
■Table for bored and drilled hole sizes : unit mm Blister Pack
| Minor | diameter of internal thre | ad size | |||
| Size | Minimum | Maximum | tolerance | Drill size | Thread enaement |
| tolerance | 6H(2nd class) | 7H(3rd class) | gg | ||
| 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%) |
| 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. 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).
●For deep hole tappings, please use shank adjusters.
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