Blasthole Products Tri-Lube Designed to extend the life of air bearing roller stabilizers, drill steel and rotary three-cone drill bits RDO 302 ES Environmentally safe vegetable oil based rock drill lubricant RDO 302 ES (SOL) Environmentally safe vegetable oil based rock drill lubricant (Water Soluble) Hole Control A unique cost-saving fluid formulated to speed-up hole-collaring, reduce collar sloughing and stabilize the total blasthole Dust-Less Eliminates the need for dust collectors during drilling operations.