The 14 Piece Bosch EXPERT Multi Material PC Plus Hole Saw Set. A great all-rounder for every professional. Ground and sharpened fine carbide teeth provide increased strength, durability and precision. It's slot design allows for a better view and plug ejection.Supplied in a handy storage box with transparent cover. Contains:11 x EXPERT Multi Material PC Plus Hole Saws: 20, 22, 25, 32, 35, 40, 44, 51, 60, 64, 76mm1 xEXPERT Power Change Plus Arbor1 x HSS-G Pilot Drill Bit 7.5 x 105mm1 x TCT Pilot Drill Bit7.5 x 105mm