* Contains brass grommets with hole cutter and hardwood backer block, hardened mandrel and anvil * Setting tool has knurled body for greater comfort and safety * Sizes individually marked setting tool and coded with lines on anvil * Setting tool and cutter are heat treated for long life * Black oxide plating prevents rust * Hole Size After Installation - 1/2" ITEM NO:19411389 MODEL:71264 SIZE:4 UPC:038728-223432 VL:B UM:CD PK:4