 |
| |||
| hand drill | |||
| breast drill; portable drill; power drill | |||
| gad picker | |||
| breast auger (zum Abbohren des Kohlenstoßes) | |||
| drill; Archimedian drill; wimble | |||
| |||
| electric hand drills | |||
| |||
| rock-drill worked by hand | |||
| Handbohrmaschinen: 4 phrases in 2 subjects |
| Metallurgy | 2 |
| Mining | 2 |