High precision, time proof PCD drill bit for aluminum |
¡ôPCD drill bit-PCD drill bit for light alloy |
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¡ôSpecification of drill bit and its application scope |
Type of drill bit | Type EP | Type OP | Type SP | Type HP | With cooling hole specification |
Specification | Shoulder | Shoulder | Fork | Minor cutting-edge specification | With cooling hole |
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¦Õ5.0¡«¦Õ56.0 | ¦Õ5.0¡«¦Õ16.0 | ¦Õ5.0¡«¦Õ16.0 | ¦Õ6.0¡«¦Õ16.0 | ¦Õ6.0¡«¦Õ16.0 |
Drilling depth | ¡«3 | ¡«3 | ¡«3 | ¡«3 | ¡«5 |
Hole-diameter tolerance grade | class 8¡«10 | class 7 | class 6¡«7 | class 6¡«7 | class 7¡«8 |
Roughness grade | 1.2¡«3.2RZJIS | 1.2¡«3.2RZJIS | 1.2¡«3.2RZJIS | 1.2¡«3.2RZJIS | 1.2¡«3.2RZJIS |
¡¤We can produce step and chamfering drill bit or produce in batch according to requirements and size tolerance of drawings, samples |
¡¤Sometimes the precision of drilled hole is affected by environment etc, and vary according to cutting conditions, cutting fluid andcutting etc |
¡¤For type HP drill bit of less than¦Õ12, can't produce internal cooling hole drill bit |
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