Diamond drill bit DeWalt DT6038-QZ, 6 mm, 1 pc

DeWalt DT6038-QZ is a 6 mm diamond drill bit supplied as a single piece, designed for drilling precise small-diameter holes in hard materials. The bit features a diamond grit-welded tip for sustained cutting performance and core ejection slots to clear plugs during repeated drilling. Reverse-spiral threads permit continuous water feed to keep the cutting area cool and reduce chipping when working with dense tile and porcelain.

Advantages

The diamond grit-welded tip provides extended wear resistance and consistent cutting through abrasive surfaces. Reverse-spiral threading ensures efficient water flow to the cutting edge, helping to maintain speed and minimize heat build-up. Core ejection slots simplify removal of material plugs, enabling faster successive holes and reducing downtime. The compact 6 mm diameter is intended for accurate, small-diameter drilling where neat, controlled holes are required.

Suitable for

• Drilling holes in ceramic and porcelain tiles
• Cutting through glass and glazed surfaces for fittings and fixtures
• Creating small-diameter holes in natural stone such as granite and marble
• Precision installation tasks in bathroom and kitchen renovation

Key specifications

• Tip type: diamond grit-welded
• Diameter: 6 mm
• Intended use: drilling with a handheld or stationary drill
• Designed for: tile, porcelain, ceramic, glass, natural stone
• Threading: reverse-spiral to enable continuous water feed
• Feature: core ejection slots for plug removal
• Quantity: 1 piece

How to use

Secure the workpiece and mark the drilling point. Use a drill with appropriate speed control and, when possible, a guide or jig to maintain perpendicular alignment for a clean 6 mm hole. Apply continuous water cooling through the reverse-spiral thread or by directing a steady stream of water to the cutting area to reduce heat and dust. Begin drilling at low speed to establish the hole, then increase pressure and speed gradually while maintaining coolant flow. Periodically withdraw the bit to clear debris and allow cooling; use the core ejection slot to remove any plugs retained in the bit.

Usage recommendations

Use steady, moderate pressure and continuous water cooling when drilling hard glazed tile, porcelain or stone. Avoid excessive side pressure or high speed without coolant to prevent premature wear. For best results, start with a pilot contact at low speed and keep the drill perpendicular to the surface.