For sale is a NEW, NOS, Milwaukee Amstar, 2-1/2", Perc Core Bit, No. 48-20-6050, for 5300 Series tool. Hex shank measures 1/2". It is new old stock. So it might have light surface rust. Never used, still has the protective dip around the cutting area. Please see all photos and ask any questions before bidding. As-Is. No returns or refunds. Thanks for looking.