Material: Alloy 54MM (2-1/8) Lock Installation Kit (Hole Saw, Drill Bits For Plastic, Wood , F41-1) Features Lock Hole Cutter: 2 1/8" (54MM) Can drill about 38mm depth (for wood) The hole saw has a twist drill bit inside Auger Bit: 7/8" (22MM) For 2 1/8" 54MM Deadbolts or Locksets with a 7/8" 22MM Latch hole Installs: Yale, Kwickest, Weiser, Schlage, Dexter, Weslock, National, Sargent Accort & EZ Set Packing include 1 x Auger bit 22mm diameter 1 x Hole saw cutter 54mm diameter 1 x Hexagon wrench Weight(KG): 0.250