To hold the centerline on the workpiece will help the device shown in the figure.
Recommend to read
TO HAMMER WITHOUT A HAMMER
In an awkward place where there is no opportunity to even swing a little hammer, "hammer" a nail with the help of the clamps: it will simply push, and on the hat, no worse than a hammer.
STAMPS FOR SCHEMES
Each constructor of RC models knows how many times spent the time to draw a wiring diagram. In a hurry is not always possible to sustain the necessary proportions between the individual...
