- Keep drills cool.
- Aid the removal of debris.
- Buy enough to be generous.
- Should be aqueous and non-flammable.
- Buy non-toxic for use with hand tools.
- Always wear "eye-protection"/].
- Always wear "dermal-protection"/].
This stuff cools and lubricates drilling and cutting bits, it is essential to preserve and prolong the life of these bits which lose their strength and cutting edge if they overheat.