Geometric data
| Description | Value | |
|---|---|---|
| J21 | Identifying order number | TNMG160404N-EX AC520U |
| J3 | Company code | SU - Sumitomo |
| NSM | Standard number of properties layout | DIN4000-76 |
| BLD | Tool style code | 1 |
| A1 | Insert included angle | 60 Degree |
| A2 | Clearance angle major | 0 Degree |
| B3 | Inscribed circle diameter | 0.375000 in |
| C1 | Insert thickness | 0.187480 in |
| D1 | Corner radius | 0.015748 in |
| D7 | Insert rake angle | 16 Degree |
| E6 | Chip breaker face count | 2 - With chip breaker on both sides |
| E9 | Chip breaker manufacturers designation | EX |
| F1 | Insert hand | N - Neutral |
| G1 | Tolerance class insert | M |
| G4 | Insert thickness total | 0.187480 in |
| G5 | Insert mounting style code | 2 - With cylindrical bore |
| G6 | Fixing hole diameter | 0.150000 in |
| H2 | Coolant supply property | 0 - Without coolant supply |
| H3 | Grade manufacturer's designation | AC520U |
| H5 | Coating | PVD |
| ISISO | ISO property | 0 |
| J11 | Standard designation | TNMG160404 |
| J11A | Standard designation ANSI | TNMG331 |