Civil Engineering Reference
In-Depth Information
Fig. 5.12 Using a piece of bar on an angle so it is above the vice jaw will enable you
to find the exact edge.
SETTING THE DATUM OF A WORKPIECE
Setting from a horizontal hole
If we have to set a horizontal hole central put a bar through the hole and
wobble off the bar to find the centre of the hole. This is very useful when we
have to drill mounting holes in symmetrical objects like bearing blocks.
