Drill without marking the large diameter hole allows this simple fixture. The pilot hole on the end of a piece of wood-a compass will not allow the drill nor “collapses” in the direction nor to deviate from a perfect arc, whose radius is set by the distance to the axis. Uniform spacing between perforations is easy to maintain, focusing on the end of the bar. If the width of the bar equal to two diameters of the drill, rotate the block to align its long side with a diameter of a finished hole will determine the location of the next.
Recommend to read
SPINNING WHEEL IN RETRO STYLE
In "M-K" was published, the drawings and description of electric spinning-wheel; material found a ready response among our readers. However, some believe that an electric spinning wheel...
WINDMILL-A MACHINE
The editors constantly receive letters asking to tell about wind engines. In this publication we offer to your attention the device, published in the journal "Earmaster". This...
