How To Grind Out Rust Inside 3quot; Pipe? weldingweb
Apr 29, 20150183;32;Most common in the field around here is the pink aluminum oxide cylinder on a die grinder. 1/4quot; shank, 1quot; depth, 1quot; diameter. If your tubes are so bad that this stone can't clean it you'll probably find it's too pitted to tig anyhow. Metal burrs will work but with all the filings you try to avoid them as much as possible.