The Group 31 Power Brush Bit is ideal for removing corrosion or oxidation from your marine battery terminals and connections This Group 31 Brush Bit is designed to work with standard corded/cordless and pneumatic drills and power tools; making cleaning your battery connections fast and easy Fits 3/8 Inches power drill chuck. Fits all Group 31 positive and negative battery posts. Fits 3/8 Inches Power Drill Chuck
