Drill bit GRAPHITE 57H263 for glass and ceramic tiles, tungsten carbide tip, cylindrical shank, 10 mm

The GRAPHITE 57H263 drill bit for glass and ceramic tiles is a 10 mm cutting-diameter tool with a tungsten carbide tip and a cylindrical shank. It is designed to drill brittle materials such as ceramic tiles, porcelain and glass with controlled feed and reduced risk of cracking. The cylindrical shank fits standard drill chucks, making the bit compatible with common corded and cordless drills used in tiling, glazing and bathroom installation tasks.

Advantages

The tungsten carbide tip provides increased hardness and wear resistance compared with standard steel tips, enabling cleaner holes and longer service life when working with abrasive tile glazes. The geometry of the tip is optimized for initiating a hole without excessive chipping, while the 10 mm cutting diameter delivers a precise, repeatable bore for anchors, fittings and pipe passages. The cylindrical shank ensures secure clamping in standard chucks and simple interchangeability between tools.

Suitable for

• Drilling holes in ceramic floor and wall tiles
• Creating holes in porcelain and glazed tiles
• Drilling glass panes for fixtures and fittings
• Preparing tile openings for bathroom and kitchen installations

Key specifications

• Cutting diameter: 10 mm
• Tip material: tungsten carbide
• Shank type: cylindrical (straight)
• Intended material: glass and ceramic tiles, porcelain, glazed surfaces

How to use

Mark the drilling point and secure the tile or glass to prevent movement. Start drilling at low speed to allow the tungsten carbide tip to score the surface, applying light, steady pressure. Maintain a perpendicular drill angle to reduce chipping; for glass, consider using tape over the drilling point to stabilize the surface. Use water or a coolant spray intermittently to reduce heat build-up and extend bit life when drilling multiple holes. Stop periodically to clear debris and inspect the hole for cracks.

Usage recommendations

Use the bit in a drill with adjustable speed control and set a low to moderate RPM when penetrating brittle materials. Avoid excessive axial force; let the carbide tip do the cutting. For large or deep holes, drill progressively with pilot and finishing passes rather than forcing a single deep cut. Store dry and clean after use to protect the tip from contamination.