With Hand Tap set of 3 pieces ISO 529 HSS-G - BSF 2" x 7 you create a thread interface that must assemble without force. Preparation of the hole or blank and steady alignment are the practical checkpoints for repeatable threads.
BSF identifies a Whitworth based fine series, often encountered in maintenance of older imported machinery. ISO 529 indicates the referenced standard family or tool standard named in the product designation. HSS-G denotes a ground high speed steel tool, suitable for repeatable threading work with proper lubrication.
Note Clean threads and tools before use, apply suitable lubrication for cutting operations, and stop if resistance rises sharply.
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| Type of thread | British Standard Fine Thread |
|---|---|
| Standard | ISO 529 |
| Material | HSS-G |
| Tolerance | medium |
| Size | BSF 2" x 7 |
| Overall length (L1) | 175 mm |
| Thread length (L2) | 47 mm |
| Core hole diameter (D1) | 47.0 mm |
| Shank diameter (D2) | 35.5 mm |
| Drive connector | 28.0 mm |
| EAN | 4022835854548 |
| Item number | 85454 |
| Type of flute | straight fluted |
| Application | for through and blind holes |
| Thread standard | BS 84 |









