Caswell Black Oxide Kit - 1.25 Gal by Caswell at R&R Super Shine. MPN: BO1CS. Hurry! Limited time offer. Offer valid only while supplies last. Convenient - Easy to do in house. No waiting for heatup of blackening solution. No waiting for the unpredictable return of parts from an outside vendor. Eliminates high outside vendor costs. Retain control of production and quality. Ideal for high volume or short runs. Works especially well for blackening large volume of small parts in a rotating barrel. Higher Productivity - Parts can be blackened in two minutes vs 15 to 30 minutes for hot oxide. Normally twice the amount of parts can be blacke
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