When purchasing Brownells or any other brand from eGoods365.com store, you can be sure that (a) you are purchasing from US based company with the most responsive and friendly customer service; (b) an authentic, not a counterfeit and not a refurbished product.

Our gunsmith customers have praised this product as the finest we've ever offered for cutting, drilling, and tapping all types of heat-treated steels, moly, and stainless. It works wonders in chambering and other boring tasks, an ideal coolant for shaping, lathing, and milling - it can decrease your shop's tool expenses and increase production speed daily. It doesn't evaporate and rarely requires steam for the job as it follows your tap or drill. Plus, it's a money-saver. In one instance, all the four holes drilled and tapped for a mount were accomplished with the use of DO-DRILL™, and the tap remained sharp for future use. Given how costly some taps are nowadays, not using it would be a missed opportunity.