| Mod: | ST-1110 | ST-1112 | ST-1120 | ST-1122 |
| Rated Input Power | 300 W | 340 W | 360 W | 620 W |
| No-Load Speed | 1800 rpm | 1800 rpm | 1700 rpm | 1700 rpm |
| Rated Impact Frequency | 2000 | 2000 | 1800 | 1600 |
| Capacity Bolt Size | M-8-10 | M-8-10 | M-12-20 | M-16-22 |
| Common Model | Regular | Regular | Regular | Regular |
