
Everyone who had to drill holes in the pipes or other parts of circular cross-section, knows that this is a difficult task. The drill bit often slips with printed core labels, and the holes are not strictly diametrically. However, to facilitate this work and to improve the quality of the holes, a special conductor is a metal bar M-shaped cross section with a series of holes under the most frequently used drill bits. To make the fixture very easy; we only need to remember that the axes of the holes must coincide with the axial plane of the bar.
Recommend to read
IF YOU NEED MICROBALANCE
If you have to refill the pen or marker ink, there is a need in any microfinance, as the diameter of the housing is quite small. Rescue cover with the "nose" of the plastic bottle with...
AND COLORS YOUR HOUSE
In houses with thin walls, window sills, as a rule, a narrow Board, on which fits is that of a matchbook. Therefore we have to build the colors of the shelves, stands and other fixtures...