Designed to install frost plugs in liquid-cooled gas and diesel engines found in automobiles, trucks, SUVs, agricultural equipment, and construction equipment. Simply use an air hammer with the driver and appropriate disc to install frost plugs ranging from 1" to 2-1/16" in diameter.

Set contains: No. 4604-1 Driver (14" lg.); No. 4604-2 Frost Plug Disc Set (3 qty.).