Manual single speed drill DR-003, very easy to use, and is supplied with two collets of different diameter; one in the cartridge, and the second separately. When you want to install a big drill, it is necessary to find the appropriate collet. Although you can store it directly in the handle – enough to replace the stopper, and the collet insert inside.
V. PLATOV, Voroshilovgrad
Recommend to read
THE SOLENOID
So, you are already familiar with the electromagnet, knows how to work the buzzer and electric bell (see "M-K" No. 8 this year). But there is a large group of Electromechanical devices,...
RIVET YOUR HANDS
If the steel bar drill a hole the same shape of the desired rivet, its manufacture takes only a few seconds, two or three blows with a hammer to cut aluminum wire inserted in the hole,...