‎Mandrel, Pilot bit, Hole saws: 1-4",5-16",3-8",5-8”,1",1-3-8",2",2-1-4",2-1-2"

BOSCH HDG11 11-Piece Diamond Hole Saw Assorted Set for Hard Materials for Use Only with Machines Designed for Wet Sawing and on GFCI-Protected Circuit