Additional Drilling Equipment - I was told this is a Pipe Cleaner Bit used for oilfield pipe, working barrel pipe, PVC and sewer pipes. It is 2 1/8" O.D. x 4 1/2" long (appox.) and has 14 thread size. Not sure if its ready for use. Thanks for looking !. Location: Mirando City, Texas. For complete listing information please select the Click To Bid button to see this item on eBay.