pokshow copper pipe cleaner for drill, 1/2" &3/4" aluminum alloy brush set,8 heavy-duty replaceable blades, 1/4" hex shank for max durability & efficiency on copper, iron, aluminum pipes high quality 1/2",3/4" is up for auction in Tools & Home Improvement. The current bid is $1.00, 95% below the $19.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.