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Spot-Weld RemoverNow you can drill out spots welds quickly, and without drilling through both panels, with the Spot Mill from HTP America. Best of all, access to both sides of the panel is not required. The HTP Spot Mill features a hardened cobalt steel bullet point drill bit, similar to the ones found in a Bridgeport milling machine. The depth of cut is easily set by turning the adjusting ring, so you can set the tool to only cut through the upper panel. The high-torque, low-rpm drill motor cuts welds quickly. The Spot Mill comes in a molded case with four replacement cutting bits, regulator, and oiler.