AIM : to make thre4ads in a nutbolt
REQUIREMENTS: tapping bit , metal plate, coolant
procedure: 1) at start take metal piece
2) center punch the hole you want to make
3) drill holes in it
4) holes should be of less as much of the pitch diameter of the tap you want to make
5) drill hole through
6) start tappin g through it usingf tappinmg bit
7) while doing it follow the rule of 2 clockwise rotation and 1 anticlockwise rotation to minimize damage of the nut