The OEMTOOLS 25860 6 Piece Air Chisel Set will hammer through any obstacles that may hinder you from accomplishing your goals. Streamline the process of making cuts on your muffler and tailpipe with our air hammer bits. Designed with steel to endure the pressure of all .401 shank air hammers, our hammer chisels empower you with the strength and speed needed to effectively remove mufflers and tailpipes for repairs. A kit comprised of 6 different chisels and cutters will always have you prepared for whatever peculiarities of a project you might encounter, and their solid steel construction means they are here to last for as long as you have a job to do. Each chisel is mounted on a 1/4 inch NPT inlet. No matter what air hammer you prefer, these bits will fit. Chip away at your to do list with ease, thanks to the OEMTOOLS 6 Piece Air Chisel Set.