Use this tool when you need reliable thread creation or re-tapping on the shop floor. Correct preparation, alignment, and lubrication are the main practical checkpoints.
UNF identifies Unified National Fine inch threads used where a finer pitch is typical for the same nominal diameter. HSS-G indicates ground high speed thép, typically used when you need a clean profile and stable tool guidance.
Lưu ý Verify the workpiece preparation before you start and stop if torque increases unexpectedly.
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Use the biểu mẫu liên hệ.
| Loại ren | Unified Fine Thread |
|---|---|
| Tiêu chuẩn | ISO 529 |
| Vật liệu | HSS-G |
| Tolerance | 2B |
| Kích thước | UNF 1.3/8 x 12 |
| Overall length (L1) | 144 mm |
| Thread length (L2) | 39 mm |
| Core hole diameter (D1) | 32.5 mm |
| Shank diameter (D2) | 25.0 mm |
| Drive connector | 20.0 mm |
| EAN | 4022835834441 |
| Mã hàng | 83444 |
| Type of flute | straight fluted |
| Phạm vi ứng dụng | for through and blind holes |
| Chuẩn ren | ANSI B 1.1 |










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