Geometric data
| Description | Value | |
|---|---|---|
| J21 | Identifying order number | 4445880 |
| J22 | Product name | TPS UNF-1/2-20-M HETI |
| J3 | Company code | IS - Iscar |
| NSM | Standard number of properties layout | DIN4000-80 |
| BLD | Tool style code | 1 |
| A1 | Thread form type | UNF |
| A22 | Thread diameter nominal inch | 0.5 in |
| A24 | Thread diameter nominal fraction | 1/2 in |
| A25 | Thread designation | UNF1/2-20-2B |
| A4 | Threads per inch | 20 1/in |
| A5 | Thread tolerance class | 2B |
| A6 | Gate diameter | 0.452756 in |
| B1 | Thread cutting part length | 0.511811 in |
| B3 | Overall length | 3.937008 in |
| D1 | Flute count | 3 |
| D2 | Flute helix hand | R - Hand of helix right |
| F1 | Cutting direction | R - Right |
| G21 | Tap type identifier | 1 - Machine tap |
| G3 | Plug style | C - Kappa r 15° |
| H11 | Standard designation of the grade, main application | HSS-E |
| H14 | Chip removal class mfg | M |
| H21 | Coolant entry style code | 0 - Without coolant entry |
| H22 | Coolant exit style code | 0 - Without coolant exit |
| H3 | Grade manufacturer's designation | HETI |
| J1 | Standard | DIN374 |
| J7 | Data chip provision | 0 - Without data chip |