How to drill a hole in a steel plate
A (note: before you touch the drilling machine, check that the power is off.)
First, you insert the key in the chuck. Then you rotate the key clockwise until the jaws are open. Next, you insert the bit between the jaws. Finally, you rotate the key anticlock-wise until the jaws are ciosed. Before you use the drill, make sure that the bit is tight.
B 1 mark the hole on the plate.
2 put the plate into a vice on the table.
3 move the table end the vice until the bit is over the mark.
4 tighten the table and the vice.
5 switch on the power.
6 lower the bit and drill the hole carefully.