Diamond Hole Saw (Core Bit) MILWAUKEE HEX 8 mm

The MILWAUKEE HEX 8 mm Diamond Hole Saw (core bit) is engineered for accurate 8 mm hole drilling in hard and brittle materials. It combines a diamond-coated cutting edge with a HEX shank to provide stable engagement in quick-change and standard chucks. The bit is intended for use with handheld drills and drill presses and is suitable for work on tile, ceramic, glass, porcelain and similar masonry surfaces where a clean, precise small-diameter hole is required.

Advantages

The diamond cutting edge ensures efficient cutting and extended life when used on abrasive surfaces. The HEX shank design prevents slipping in bit holders and allows faster bit changes compared with round-shank alternatives. The compact 8 mm diameter gives precise control for fixture access, anchor holes or small-diameter pass-throughs in delicate materials. The overall construction provides consistent hole quality with minimal chipping when used with appropriate technique.

Suitable for

• Drilling 8 mm holes in ceramic and porcelain tiles
• Creating small-diameter openings in glass and glazed surfaces
• Installing anchors, screws or plumbing fixtures in tiled walls
• Precision tasks on countertops, backsplashes and bathroom installations

Key specifications

• Cutting diameter: 8 mm
• Tip material: diamond grit cutting edge
• Shank type: HEX for secure bit holder engagement
• Intended materials: tile, ceramic, glass, porcelain, masonry
• Compatibility: handheld drills and drill presses

How to use

Mark the drilling location and secure the workpiece to prevent movement. Use a slow to moderate drill speed and apply light, steady pressure to allow the diamond grit to abrade the material rather than forcing the bit. For glass and tile, starting at a low speed or using a guide can help prevent walking. Periodically withdraw the bit to clear debris and, where appropriate, use water or a coolant to reduce heat and extend bit life. After drilling the 8 mm hole, deburr edges if necessary and clean the surface.

Usage recommendations

For best results, use the bit with a drill capable of maintaining steady RPM and, when working on glass or porcelain, consider water cooling and a guide or tape to stabilize the cutting point. Avoid excessive axial force and high speeds to minimize chipping and overheating.