1878 29 piece set 1/16-1/2X64th. Set range: 1/16-inch - 1/2-inch. Cle-Line is a familiar name to users of quality cutting tools. Cle-Line cutting tools have been manufactured for decades specifically for the construction, maintenance, repair, operating and industrial markets. Most popular drill sizes; metal kit. 1878 29 Piece set 1/16-1/2 x 64 Set range: 1/16-inch - 1/2-inch Cle-Line is a familiar name to users of quality cutting tools Cle-Line is a familiar name to users of quality cutting tools.