Small Hole - Standard Grooving Inserts

| Min Bore |
Boring Bar Type |
Left or Right |
W | D | T | Grade GP22 Part Number |
Grade GP4 Part Number |
| 0.312 | BFR3 | RIGHT | 0.031 | 0.035 | T-BFR3031WGP22 | - | |
| BB | RIGHT | 0.031 | 0.05 | 0.137 | T-BNGR031WGP22 | T-BNGR031WGP4 | |
| LEFT | 0.031 | 0.05 | 0.137 | - | - | ||
| RIGHT | 0.047 | 0.07 | 0.137 | T-BNGR047WGP22 | T-BNGR047WGP4 | ||
| LEFT | 0.047 | 0.07 | 0.137 | - | - | ||
| RIGHT | 0.062 | 0.07 | 0.137 | T-BNGR062WGP22 | T-BNGR062WGP4 | ||
| LEFT | 0.062 | 0.07 | 0.137 | - | - | ||
| RIGHT | 0.094 | 0.07 | 0.137 | T-BNGR094WGP22 | T-BNGR094WGP4 | ||
| RIGHT | 0.125 | 0.07 | 0.137 | T-BNGR125WGP22 | T-BNGR125WGP4 | ||
| 0.400 | BFR3 | RIGHT | 0.031 | 0.035 | T-BFR4031WGP22 | - | |
| 0.500 | BTR | RIGHT | 0.062 | 0.075 | 0.13 | - | T-BTGR062WGP4 |
| 0.094 | 0.075 | 0.13 | - | T-BTGR094WGP4 | |||
| 0.125 | 0.075 | 0.13 | - | T-BTGR125WGP4 |