Answer:
4it is best to use the right size of drill bit in boring holes because undersized drilled holes will need to be drilled again while oversized holes will cause a wastage in the material.
5.This stand helps prevent the hot iron tip from coming in contact with flammable materials or causing accidental injury to your hand. Most soldering stations come with this built in and also include a sponge or brass sponge for cleaning the tip.
