Dry Diamond Drill Bit for Tiles, Marble and Glass – No Water Required

Drill clean holes in tiles — without cracks, chips or water chaos

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

Avoid cracks on the last hole

You mark four spots for a towel rail. Three drill cleanly, but on the fourth the edge breaks off and a hairline crack runs across the surface. Ordinary masonry bits slip across porcelain glaze. Cheap diamond hole saws need a constant flow of water to avoid overheating — and running a hose through a fully fitted bathroom just for one bracket is not realistic. This drill bit grips the surface instantly on contact and stays cool even when used dry.

➤ Bites instantly, no pilot drilling required: The vacuum-brazed diamond grit grips the surface as soon as the bit touches the glaze. Mark the spot, pull the trigger — drill: no slipping, no hairline cracks, no taping beforehand.

➤ Dry operation, no pool of water needed: The exposed grit tip dissipates heat through its open surface, so you can drill a wall-mounted shower holder without a plastic guard or coolant hose.

➤ Fits any drill you already have: The standard 1/4-inch hex shank fits cordless drivers, 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 for industrial wet rigs

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 so that they protrude from the surface and stay sharp much longer than the electroplated grit in cheap hole saw sets. The exposed grit cuts faster, clears debris through its open structure and stays cool enough in typical dry use.

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

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