Hole Cutter Kit Primary Material Application Metal Materials Cut Aluminum Copper Stainless Steel Steel Arbor Design Built-In Tooth Material Carbide Tipped Teeth per Inch - Number of Teeth (Hole Cutters Only) 5/6/8 Max Cutting Depth 1/8 in Impact Rated No Hole Cutter Sizes (Hole Cutters) 7/8 in 1 1/8 in 1 3/8 in Saw Size Range 7/8 in to 1 3/8 in Number of Hole Cutters 3 Shank Size 3/8 in Hex Pilot Drill Size 1/8 in dia x 5/32 in L Number of Pieces 4