"Original AVG are a premium manufacturer and supplier of compressed air solutions.

Pneumatic lubricators deliver oil to air tools and equipment to improve performance and reduce wear.
The oil drip rate is controlled by the adjustable bolt. Normally, 1 to 12 drops/1000 or the air is sufficient.
Recommended lubricant ISO VG 32 / ISO VG 32 or equivalent.
Temperature range: -5c / 70c
Connection Size: 3/4
Operating Pressure range: 0.5–16 bar

Read more on our Original AVG website - originalavg.com"