Product Description
Milwaukee 7/8 in. Carbide Grit Hole Saw with Carbide Pilot Bit
Model Number: 49-56-0409
The Milwaukee 49-56-0409 is a 7/8 in. Carbide Grit Hole Saw with an included Carbide Pilot Bit — a compact abrasive grit hole saw for cutting accurate holes through ceramic tile, porcelain tile, natural stone, and fiberglass where the 7/8 in. bore is specified for the fitting, pipe stub-out, or hardware being installed through a tiled surface. The carbide grit rim grinds through hard, brittle tile and stone materials by abrasive action — avoiding the chipping, cracking, and perimeter fracture that conventional toothed hole saws cause in brittle glazed tile. The 7/8 in. diameter is used for small plumbing stub-outs through tile walls, specific conduit penetrations through tile, and small fixture entry holes where this compact bore matches the fitting specification for the installation being made through the tile surface.
The included carbide pilot bit provides the centering function that keeps the hole saw accurately positioned at the marked hole center during initial engagement on the smooth, hard tile surface — without the pilot bit, the abrasive grit rim has no centering mechanism and would wander before establishing the circular cutting path. Wet cutting with water or cooling spray is strongly recommended — extending carbide grit service life, reducing thermal cracking risk in heat-sensitive glazed tile, and suppressing respirable silica dust. Slow, steady feed pressure prevents the brittle tile face from spalling at the cut perimeter during the drilling operation.
See Milwaukee's complete carbide grit hole saw lineup for all available diameters for tile and hard surface hole sawing applications.
Features
- Carbide grit for ceramic, porcelain, stone, and fiberglass without chipping or cracking
- 7/8 in. for small plumbing stub-outs and specific fixture holes through tile surfaces
- Carbide pilot bit for accurate hole centering on smooth tile surfaces
- Wet cutting recommended for grit life, crack prevention, and silica dust control
- Abrasive grinding avoids fracture that toothed hole saws cause in brittle tile
Specifications
- Diameter: 7/8 in.
- Cutting Edge: Carbide Grit
- Application: Ceramic Tile, Porcelain, Natural Stone, Fiberglass
Includes
- (1) Milwaukee 7/8 in. Carbide Grit Hole Saw
- (1) Carbide Pilot Bit
