Milwaukee 49 22 4037 Hole Saw Kit 13 Pieces, 1 11 16 in Max. Cutting Dp, Bi Metal, 6 Teeth per Inch PRM 6 Pressure 225 psi @ 72 Pressure 225 psi @ 72 Degrees F UPC 818273415502 Vacuum 26 In Hg At 72 Deg F Connection Drilled Pipe Fitting Material EPDM Resistance Properties Corrosion Resistant Compression Distance 5 8 in Expansion Joint Type Single Bulb Joint Material EPDM Flange Material Steel Features Absorbs Pipe Movement and Stress Expansion Distance 3 8 in Flange Material Finish Zinc Plated Number of Bolt Holes 8 Connection Material Zinc Plated Steel Application Gases Keyway Height 5 16 in Number of Pieces 13 Tooth Material Bi Metal Number of Pieces 13 Arbor Design Built In Arbor Teeth per Inch 6 Application General Purpose UPC 045242615001 For Workpiece Material Multi Material