DEWALT DW5224B25 Masonry Drill Bit, 1 4 in Drill Bit Size, Fractional Inch, 2 in Max Drilling Dp, 25 PK 36PV19 55 Installation Method Grid (Suspended) 55 Installation Method Grid (Suspended) Edge Type Beveled Tegular Color White Ceiling Attenuation Class 35 Tile Edge Type Beveled Tegular Material Mineral Fiber Application General Use Recycled Content 43 % Features Non directional visual Number of Conductors 2 with Ground Jacket Color Silver Jacket Material Aluminum Item Metal Clad Armored Cable Jacket Material (Wire and Cable) Aluminum Cable Type Wire and Cable MC Wire and Cable Item Metal Clad Armored Cable Stranded Solid Solid Jacket Material Wire and Cable Aluminum Application Indoor Standards UL 83 Shank Type Machining Straight with Three Flats Finish Machining Bright (Uncoated) Material Machining Carbide Tipped Number of Cutter Heads 2 Percussion Rated Yes Impact Rated No Number of Pieces 1 Measurement System Fractional Inch For Tool Type Hammer Drill Decimal Equivalent 0 Hammer Drill