OEMTOOLS Saw 22535 1/4 Inch x 3/8 Inch x 1/2 Inch Low Profile Adapter Set, 3 Piece Includes sizes: 1/4 Inch (f) x 3/8 Inch (m), 3/8 Inch (f) x 1/2 Inch (m) and 1/2 Inch (f) x 3/4 Inch (m) Made with chrome vanadium steel for strength Chrome finish to resist rust Knurled for firmer grip Not for impact use