Diamax Core Drill Bit Adapter (SKU: CBADPTR)

The Diamax Core Drill Bit Adapter (SKU: CBADPTR) is a precision-engineered accessory designed to expand the compatibility and versatility of your diamond core drilling setup. This adapter allows professionals to use standard 5/8″-11 threaded Diamax core drill bits with tools equipped with a 1/2″ drill chuck, eliminating the need for specialized spindles or dedicated core drilling machines.

Built for flexibility and performance, the CBADPTR converts a conventional 1/2″ chuck connection into a 5/8″-11 threaded mounting point—one of the most common thread standards used in diamond core drill bits. This makes it an essential accessory for fabricators, installers, and contractors who want to maximize tool compatibility across multiple job-site applications.

Constructed from durable, heavy-duty materials, the adapter is designed to withstand the torque and high rotational speeds associated with professional drilling tasks. It is suitable for both wet and dry drilling applications, making it ideal for working on granite, marble, quartz, engineered stone, porcelain, and concrete. When used in wet conditions, it supports improved cooling and extended bit life; in dry applications, it provides the convenience and portability required for on-site installations.

Compatible with impact drills (non-hammer mode), standard rotary drills, pneumatic drills, and select angle grinders with a chuck attachment, the CBADPTR provides reliable, secure threading to ensure stable bit performance and reduced vibration during operation. Its balanced design helps maintain drilling accuracy while minimizing runout and slippage.

Whether you’re drilling faucet holes, anchor points, or plumbing openings in countertops and slabs, the Diamax Core Drill Bit Adapter delivers the adaptability and reliability professionals need to complete drilling tasks efficiently and accurately.

Key Benefits

• Converts 1/2″ drill chuck to 5/8″-11 threaded connection

• Expands compatibility for standard diamond core drill bits

• Suitable for wet or dry drilling applications

• Durable construction built for professional use

• Compatible with rotary drills, pneumatic drills, and select grinders

• Ideal for stone, quartz, porcelain, and concrete drilling

The Diamax CBADPTR Core Drill Bit Adapter is a practical and essential solution for professionals seeking greater flexibility, efficiency, and tool compatibility in diamond core drilling applications.

Key Features

Thread Conversion Adapter

Converts a 1/2″ drill chuck to 5/8″-11 male thread for use with Diamax core bits.

Versatile Compatibility

Lets you mount 5/8″-11 threaded diamond core drill bits on common drills and grinders.

Wet or Dry Use

Engineered to work in both wet and dry drilling conditions.

Heavy-Duty Construction

Designed for reliable performance with stone, concrete, and other hard materials.

High RPM Tolerance

Rated for use up to 10,000 RPM, suitable for professional drilling tools.

Specifications

Available Items