Before you drill cylindrical in shape, its surface need to procure under the drill “the hole” — to stake. But not so easy to set the core to such detail. Helps may this simple device, consisting” of two halves: the bottom serves as bed for the most part, and on top of the guide pins worn shaped clamp with holes for the core. It is much easier to work, improves the accuracy of markup. The fixture will stand in good stead not only at home but also at work. N. PASHCHENKO, Turner, Donetsk region.
Recommend to read
ARTILLERY TANK FOR THE RED ARMY
In July 1929 the revolutionary military Council of the USSR adopted the "System of tank-, tractor-, car-, breeveertien the red army" laid for the coming years program to create armored...
DRYING IN FLIGHT
Probably there is no sector of the economy, which would not have developed or used bulk materials. And for most of these powdered products is the most insidious enemy — humidity. To get...
