The advantage of the quartz nail with 90° angle is that when heating the nail, the standard grinding of the bong is less prone to getting heated, too. Quartz glass in comparison to borosilicate glass is durable heat-resistand, it keeps heat better and longer.
The oil bowl/oil nail must be heated only at the pan, otherwise the grinding can break in cause of the expansion of the material.
More information about smoking oil or essence you will find at this infopage.
|Brand||Oil Black Leaf|
|Standard grinding||SG 14 (14,5mm)|
for ca. 6g L 130mm
Ø 40mm WT 6mm
H 46mm W 61mm
SG 10/14/19 and