Uxcell a10072400ux0026 Uxcell Product Name : Hole Saw Set; Material : Hard Alloy Diameter of the Hole Saw : 22mm;Size of the Shaft : 9.5mm x 23mm(D*H) Total Size(installed) : 105mm x 22mm(L*D);Color : Silver Tone Weight : 99g Package Content : 1 x Hole Saw, 1 x Twist Drill Bit, 1 x Hex Wrenches