Mibro 132691 3 Piece The Whizzz Hole Saw Lock Installation KitMibro 132691 3 Piece The Whizzz Hole Saw Lock Installation Kit Features:; For installing Schlage sets and other brands requiring these size holes in wood doors; For 2-1/8" dead bolts or lock sets with 5/16" or 1" latch hole; Kit includes hole saw, mandrel, and wood spade bit; Carded