Diamond Core Drill Bit 8 mm, INDIAN PROFESSIONAL IP7729 — dry drilling, hex shank

Diamond Core Drill Bit 8 mm from INDIAN PROFESSIONAL (IP7729) is a compact dry-drilling accessory with a diamond cutting edge designed for precision work in hard surfaces. The tool is intended for making small-diameter holes in materials such as masonry, ceramic tile, porcelain and similar dense substrates. A hex shank provides secure engagement in compatible chucks and bit holders, enabling fast bit changes and stable rotation during drilling.

Advantages

The diamond cutting edge ensures efficient material removal and extended abrasive life compared with conventional HSS bits when working with hard, brittle surfaces. The 8 mm diameter offers accurate, repeatable hole sizes for installations and fixtures. The hex shank reduces slippage in quick-change holders and standard impact/drill drivers, improving user control in dry drilling applications.

Suitable for

• Drilling small-diameter holes in ceramic and porcelain tiles
• Creating openings in masonry and brick for anchors and fasteners
• Precision holemaking in stone-like cladding and façade materials
• Dry drilling where water cooling is impractical or unwanted

Key specifications

• Cutting material: diamond abrasive edge for enhanced wear resistance
• Intended drilling method: dry drilling
• Shank type: hex shank for secure engagement in bit holders and chucks
• Nominal diameter: 8 mm for small, precise holes
• Typical applications: masonry, tile, ceramics and similar dense substrates

How to use

Secure the diamond core drill bit in a compatible chuck or quick-change holder, ensuring the hex shank is fully seated. Mark the drilling point on the workpiece and start drilling at low speed to establish a stable contact point; then increase speed and apply light, steady pressure. Keep the drill perpendicular to the surface to maintain hole geometry. Because this bit is designed for dry drilling, avoid flooding the contact area with water; instead, allow intermittent pauses if the bit or workpiece becomes hot to prevent thermal damage.

Usage recommendations

Use appropriate personal protective equipment such as eye protection, gloves and a dust mask when dry drilling. For best results on very hard or large-area workpieces, consider pairing intermittent drilling with short cooling pauses and using a drill with adjustable speed control. Inspect the bit before use for wear or damage and replace when the cutting performance noticeably decreases.