7 Piece, Forstner Bit Set With Wood Case, Set Includes: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8" & 1" Bits, Have 1/4" Shank, Designed To Create Completely Smooth, Flat Bottomed Holes, Ideal For Drilling Decorative Holes For Woodworking & Hinge Boring, For Use With Wood, Perfect For Fine Woodworking, Chrome Steel Alloy Construction Allows The Bits To Withstand High Temperatures During Drilling, Reducing The Risk Of Burning, Brad Point Centers Bit For Easy Positioning Of Hole, Suitable For Portable Drills Or Stationary Machines.