To hold the centerline on the workpiece will help the device shown in the figure.
Recommend to read
DRILL CHANGES RPM
Electric hand drill machine (or drill) there are many home craftsmen. But its opportunities will be wider if it is to provide a speed controller. In this case, the tool, in addition to...
BOX WITH BRAKE
One careless movement the child pulled the box out of the wall, and all content from a crash is on the floor. But the blame and not so much the baby, as the Pope: it is easy to do in the...
