That's the way it goes: put the nail on the bong, heat the oil pan red hot with a burner, let it cool off for a short time, then put some oil or wax into the pan with the respective tool and take a draw while smoke develops. A suitabel dome or carb cap dabber can be put over the nail to collect the smoke before inhaling.
Attention: The oil bowl/oil nail must be heated at the pan only, otherwise the standard grinding can break in cause of the expansion of the material.
More information about smoking oil or essence you will find at this infopage.
H 195mm Ø 38mm
SG 14F WT 4mm
SG 14F (female)
Borosilicate (Pyrex) glass