Disston Company 282889 Carbide Tipped Glass Tile Drill Bit

Product Description

The DISSTON COMPANY 282889 is a carbide-tipped drill bit engineered for clean, controlled drilling through hard, brittle surfaces including ceramic tile, glass, mirrors, marble, and china. Measuring 1/2 inch in diameter and 3-1/4 inches in length, this bit features a spear-pointed tip geometry that reduces breakout as the bit exits the material on the backside of the workpiece. The standard shank design fits any 3/8-inch drill press or variable-speed drill. A zinc finish provides basic corrosion resistance during storage and use. This bit is suited for tile setters, glaziers, plumbers, and HVAC techs who need to penetrate hard tile or glass surfaces during fixture and equipment installation.

This drill bit is used in residential and light commercial applications wherever ceramic tile, glass, mirrors, marble, vitrolite, or china must be drilled cleanly. Common install scenarios include fixture penetrations through backsplashes and wall tile, mirror mounting, and glass panel drilling. The bit is compatible with standard 3/8-inch chuck drill presses and variable-speed hand drills, making it accessible with equipment most trade professionals already carry on the job.

Key Features

• Carbide-tipped spear point tip minimizes breakout when drilling through to the back face of the material
• 1/2 inch diameter with 3-1/4 inch overall length for controlled depth in typical wall and panel applications
• Standard shank fits any 3/8-inch drill press or variable-speed drill without adapters
• Zinc finish for corrosion resistance during storage and repeated use
• Suitable for ceramic tile, mirrors, all types of glass, marble, vitrolite, and china

Compatibility

Designed for use in any 3/8-inch drill press or variable-speed drill. Recommended for ceramic tile, mirrors, glass of all types, marble, tile, vitrolite, and china.

Installation Notes

Installation should be performed by a qualified tradesperson familiar with drilling brittle materials. Use water or a compatible cutting fluid at the drill point to manage heat buildup and reduce the risk of cracking the workpiece. Apply steady, moderate pressure and avoid high-speed settings, as excessive RPM can cause thermal fracture in glass and tile. Secure the workpiece firmly before drilling to prevent movement and chipping.