Diamond Core Drill Bit 6 mm, Expert+ hex shank, max 3200 RPM

The Diamond Core Drill Bit 6 mm from Expert+ is a single-piece accessory with a hex shank designed for drilling small, precise holes in brittle and hard surfaces. Rated for a maximum rotational speed of 3200 RPM, the bit is suitable for use with handheld drills and rotary tools equipped with hex chucks. Its diamond cutting edge provides controlled penetration and clean hole edges in tile, glass and ceramics when used with appropriate technique and cooling.

Advantages

This 6 mm diamond core drill bit features a durable diamond-coated cutting edge that maintains sharpness during repetitive use on hard materials. The hex shank ensures secure grip in hex chucks, reducing slippage and improving torque transfer. The single-piece construction minimizes wobble for improved accuracy, while the maximum speed rating of 3200 RPM helps users match drill settings for safer, more efficient operation.

Suitable for

• Drilling small-diameter holes in ceramic tiles
• Creating precise openings in glass panels and mirrors
• Cutting through porcelain and other glazed surfaces
• Fine work on brittle construction materials for installations and fittings

Key specifications

• Cutting diameter: 6 mm
• Shank type: hex shank for hex chucks
• Maximum rotational speed: 3200 RPM
• Construction: single-piece diamond-coated core
• Intended materials: tile, glass, ceramics, porcelain and similar brittle surfaces

How to use

Secure the drill bit in a compatible hex chuck and set the drill to a controlled speed not exceeding 3200 RPM. Start drilling at a low speed to establish a small pilot groove, then apply light, steady pressure while keeping the bit perpendicular to the work surface. Use water or a suitable cooling method to reduce heat and prolong bit life, especially when drilling glass or porcelain. Withdraw the bit periodically to clear debris and inspect the hole to avoid cracking.

Usage recommendations

Wear appropriate eye protection and gloves when drilling. For best results use continuous cooling and avoid excessive side pressure. Match drill speed to the material: lower speeds for glass and porcelain, moderate speeds for tile. Replace the bit when cutting performance noticeably decreases to prevent damage to the workpiece.