Dry diamond drill bit for tiles, marble, and glass – no water required

Drilling clean holes in tiles — without cracks, chips, or water mess

This dry-cutting diamond drill bit allows you to drill, grind, and shape porcelain stoneware, marble, glass, and granite — without flooding your bathroom or breaking an expensive tile on the final hole. The vacuum-brazed diamond grit grabs instantly upon contact, and the standard 1/4-inch hex shank fits into any drill, cordless impact driver, or multi-tool you already have on hand.

Avoid cracks on the final hole

You mark four spots for a towel rack. Three drill cleanly, but on the fourth, the edge chips and a hairline crack runs across the surface. Standard masonry bits slip on porcelain glaze. Cheap diamond hole saws require a constant flow of water to prevent overheating — and running a hose through a finished bathroom just for a bracket isn't realistic. This drill bit grabs the surface immediately upon contact and stays cool even when used dry.

➤ Grabs instantly, no pilot hole required: The vacuum-brazed diamond grit adheres to the surface as soon as the bit touches the glaze. Mark the spot, pull the trigger — drill: no slipping, no hairline cracks, no pre-taping.

➤ Dry operation, no water basin required: The exposed grit tip dissipates heat across its open surface, allowing you to drill a wall-mounted shower bracket without a plastic cover or coolant hose.

➤ Fits any existing drill: The standard 1/4-inch hex shank fits cordless drills, impact drivers, and multi-tools just like a screwdriver bit. No SDS adapter, no chuck key, no special collet required.

Designed for hex shank drills — not industrial wet-cutting systems

Most diamond core bits are designed for masonry machines that flood the cutting area with water. This bit uses vacuum-brazed grit — diamond particles fused to the steel tip at high heat, allowing them to protrude from the surface and remain sharp significantly longer than electroplated grit in cheap hole saw sets. The exposed grit cuts faster, clears debris through its open structure, and stays cool enough during typical dry-cutting applications.

The 1/4-inch hex shank locks into the same drill chuck or quick-change holder used for screwdriver bits. Drill a hole, switch to a Phillips bit, drive the screw, and switch back — no loosening or wobbling while drilling, no special adapter, no extra tools required.

Why DIYers are ditching the wet-saw setup