INDPRO ROCK DRILL SERIES consists of 4 premium ISO VG 46, 100, 150 & 320 oils specifically designed for lubrication of all types air tools and pneumatic drilling equipment. Indpro Rock Drill Oil 46 is recommended for light percussion air tools such as vane & piston rotary types, rivet guns, an air cylinder equipment. Indpro Rock Drill Oil 100 is suitable medium size rock drills such as road & pavement breakers and is particularly recommended for chain saw applications. Indpro Rock Drill Oils 150 & 320 are recommended for heavy duty and/or high temperature conditions.