Diamond Core Drill Bits for Concrete & Reinforced Concrete

Product Overview

CAHARD diamond core drill bits are made for core drilling in concrete and reinforced concrete, with dry and wet drilling options available. The catalog lists 40 drill diameters from Ø18 mm to Ø300 mm. Every listed size has a 450 mm overall length and a 1-1/4" connection.

Segment specifications vary with drill diameter, so the required size and corresponding segment specification should be checked in the table below. When selecting a bit, consider the material, hole diameter, drilling depth, dry or wet drilling method, and compatibility with the core drilling machine.

Diamond Core Drill Bit Applications

These core drill bits are suitable for construction, installation and renovation work where circular holes are required in concrete or reinforced concrete.

Concrete Wall & Floor Core Drilling

For drilling circular openings through concrete walls and floors.

Reinforced Concrete Core Drilling

For core drilling where the drilling path passes through reinforced concrete containing steel reinforcement.

Pipe Installation Openings

For service openings in concrete used for pipe installation.

Cable & Service Openings

For openings required for cables and other building-service installations.

Available Sizes & Specifications

The catalog lists 40 drill diameters from Ø18 mm to Ø300 mm. All listed sizes have a 450 mm overall length and 1-1/4" connection. Segment specifications vary by diameter.

Size Range Note: Only the diameters shown in the table are listed specifications.

Segment Note: Segment specifications vary by drill diameter. The notation in the table follows the product data supplied for this series. Please confirm the required diameter and corresponding segment specification when ordering.

Diamond Core Drill Bit Features

Dry & Wet Drilling Options

The series is listed for both dry and wet drilling in concrete and reinforced concrete. Please specify the required drilling method when ordering.

40 Listed Diameters from Ø18 to Ø300 mm

The catalog includes 40 specific diameters for different hole-size requirements. Only the sizes shown in the specification table are listed options.

450 mm Overall Length & 1-1/4" Connection

Every listed size has a 450 mm overall length and a 1-1/4" connection. Check the spindle connection and drilling capacity of your machine before ordering.

Diameter-Specific Segment Specifications

Segment specifications vary across the diameter range. Check the required drill diameter against the table to confirm the corresponding segment specification.

How to Choose the Right Diamond Core Drill Bit

Confirm the Required Hole Diameter

Start with the finished hole size required for the job, then check the specification table to see whether that diameter is listed.

Confirm the Drilling Material

This series is intended for concrete and reinforced concrete. If reinforcement is present, include that information when requesting a recommendation.

Check Machine Compatibility

The listed bits use a 1-1/4" connection. Before ordering, check both the spindle connection and the drilling capacity of your core drilling machine.

Confirm the Required Drilling Depth

The listed bit overall length is 450 mm. This should not be treated as the usable drilling depth. If the project has a specific depth requirement, provide that measurement so the appropriate bit configuration can be checked.

Confirm Dry or Wet Drilling

Let us know whether the job requires dry or wet drilling so the appropriate option can be confirmed.

Tell Us About Your Core Drilling Requirements

To confirm the right diamond core drill bit for your job, send CAHARD as much of the following information as possible:

• Required drill diameter
• Required quantity
• Material to be drilled
• Reinforcement condition, if applicable
• Dry or wet drilling requirement
• Required drilling depth
• Core drilling machine model
• Spindle / connection specification
• Destination country

If you are unsure whether the bit will fit your machine, send us the machine model, spindle specification or a clear photo of the connection.

For a diameter not listed above, a different connection, or a specific drilling-depth requirement, send us the details and CAHARD can confirm whether a suitable option is available.

CAHARD can help confirm the drill diameter, connection, drilling method and specification that best match your concrete or reinforced concrete drilling requirements.