Makita D-44460 drill bit

Makita D-44460 drill bit is a purpose-designed cutting tool for drilling holes in hard surfaces. With a 22 mm diameter and compatibility with granite, marble and ceramic tile, this drill bit is intended for use with rotary and hammer drills that accept standard shank sizes. The construction and cutting geometry are optimized to provide clean, accurate holes in dense natural stone and glazed surfaces while maintaining bit life under correct operating conditions.

Advantages

The Makita D-44460 drill bit offers precise 22 mm hole cutting performance in hard materials, delivering stable operation and reduced chipping on brittle surfaces such as tile and marble. Its tip geometry and material composition are selected to resist wear when working with abrasive stone and glazed finishes, enabling reliable repeatable results. The bit is designed for compatibility with common drill chucks, simplifying installation and changeover between jobs.

Suitable for

• Drilling holes in granite countertops and stone tiles
• Creating openings in marble for fixtures and fittings
• Cutting through ceramic and porcelain tile for plumbing and electrical installations

Key specifications

• Drill bit diameter: 22 mm
• Suitable materials: granite, marble, tile (ceramic/porcelain)
• Intended use: drilling holes in hard stone and glazed surfaces
• Compatibility: fits standard drill chucks for rotary/hammer drilling

How to use

Select an appropriate drill with the correct chuck capacity and secure the Makita D-44460 drill bit firmly in the chuck. Mark the drilling position and, where possible, use a center punch or starter mark to help locate the bit on smooth tiles or stone. Begin drilling at low speed to establish the hole, then increase speed and apply consistent moderate pressure, allowing the bit to cut without forcing. For tile and glazed surfaces use water or a coolant to reduce heat and dust; when drilling natural stone such as granite or marble, periodic cooling and clearing of debris will prolong bit life. Avoid excessive side-load or twisting forces that could break the bit or damage the material.

Usage recommendations

Use appropriate personal protective equipment including eye protection and dust masking. When drilling tiles, start from the glazed side with a low speed and consider backing the tile with sacrificial material to reduce blowout. For best results in stone, employ continuous or intermittent water cooling and allow the bit to cool between extended drilling periods.