
To reduce the time for selection of drills and taps the desired diameter can be, if you whiten them with chalk engraved on their shanks marking.
POLYAKOV
Recommend to read
MILLING… A PLOT
For soil cultivation, many mechanical devices have been created to greatly facilitate this process. There are motor-ploughs, micro-tractors, and mechanized hoes... Of course, each such...
UPGRADE THE PLOUGH AND HARROW
The soil in our garden plots so that during ploughing conventional ploughs formed lumps that require further a lot of time and effort preparing the land for sowing. But people don't...