| Parts Name | Drill chuck WH | Code No. | 24999040 |
| Model | NRD-6SA, NRD-6PB | ||
| JT#1( φ 6.5) with Handle | |||
| Parts Name | Drill chuck WH | Code No. | 24999042 |
| Model | NRD-10P | ||
| JT#2S( φ 10.0) with Handle | |||
| Parts Name | Drill chuck WH | Code No. | 24999043 |
| Model | NRD-12PA | ||
| JT#6( φ 13.0) with Handle | |||
| Parts Name | Drill chuck WH | Code No. | 24999041 |
| Model | NRT-8P | ||
| JT#1( φ 8.0) with Handle | |||
Drill chuck WH