DW5578 Diamond Tile Drill Bit, 1/2 In. Dia, 2-1/4 In. OAL

The DeWalt DW5578 is a diamond-tip masonry drill bit designed to power through dense tile, solid-body porcelain, and similar hard materials. This specialized bit features a diamond-welded tip that provides extreme durability and long working life, reducing the need for frequent bit replacement on demanding tile and masonry projects.

The reverse-spiral thread design enables continuous water cooling during operation, which reduces heat buildup and produces cleaner results. Core ejection slots automatically remove drill plugs, allowing you to make repeated cuts in the same material without clogging. These features work together to deliver the performance needed for tile and masonry applications.

Features and Benefits

• Diamond-Welded Tip: Engineered for long life and extreme durability when drilling through hard materials like tile and porcelain.
• Reverse-Spiral Threads: Enables continuous water cooling for faster drilling, reduced heat, and cleaner cuts.
• Core Ejection Slots: Automatically removes drill plugs and debris, making repeated cuts easier and more efficient.
• Spiral Flute Design: Optimized for masonry and tile applications to provide superior chip removal and drilling performance.

Specifications

• Brand: DeWalt
• Model: DW5578
• Bit Diameter: 1/2 in
• Overall Length: 2-1/4 in
• Shank Diameter: 3/8 in
• Shank Type: Round
• Flute Type: Spiral flute
• Application: Masonry, tile, and porcelain drilling