What is the Carat BC02000000 adapter used for?

This adapter connects diamond core drill bits with a 5/4" UNC female thread to diamond drilling machines with a 1/2" G male thread.

What thread connections does this adapter have?

The adapter features a 1/2" G female thread on the machine side and a 5/4" UNC (1 1/4") male thread on the drill bit side.

Is this adapter suitable for wet and dry drilling?

Yes, this steel adapter is suitable for both wet and dry diamond core drilling applications.

How do you mount this adapter?

You securely tighten the adapter onto your machine spindle using a matching open-end wrench.

CARAT BC02000000 reducer 1/2" G - 5/4" UNC (external thread)

Name: CARAT BC02000000 reducer 1/2" G - 5/4" UNC (external thread)
Brand: CARAT
SKU: 02757072
Price: 25.95 EUR
Availability: InStock

Supplier number: CARAT BC02000000 | EAN 8714452992685

Recommended Retail Price €32.67

25.95 tax incl.

€21.45 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 2 products in stock.

Ordered before 20:00 - delivered tomorrow 03/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

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Maximum versatility for core drilling

Practical benefits

Reliable Carat connection: You can effortlessly connect machines with a 1/2" G fitting to diamond core bits with a 5/4" UNC male thread.
Robust and durable design: Built from heavy-duty metal, this adapter easily withstands intense drilling forces and high torque on tough jobsites.
Quick and easy installation: You can mount the reducer in seconds to switch between different core bit sizes without wasting valuable working time.

In a nutshell

The right choise for

With the Carat BC02000000 adapter, you instantly add versatility to your core drilling setup. This rugged adapter smoothly connects drilling machines featuring a 1/2" g spindle to diamond core bits with a 5/4" unc (1 1/4") thread, eliminating the need for multiple dedicated machines. Engineered from solid metal to handle intense drilling forces, it is fully suitable for both wet and dry applications in concrete, masonry, and stone. Fast and easy to tighten with an open-end wrench, it enables quick bit changes on the jobsite so your plumbing, HVAC, or construction work progresses without downtime.

Product information FAQ

€25.95

In stock - tax incl.

Key features according to our expert

Accessory/Part type: Adapter
Connection size: 1 1/4"
Tool holder size: 1/2"

Product description:

Adaptors

All Features

Accessory/part type: Adapter
Connection size: 1 1/4"
Tool holder size: 1/2"

Brand CARAT
02757072
EAN 8714452992685
Supplier number CARAT BC02000000

Frequently asked questions about this product

Answered by specialists

What is the Carat BC02000000 adapter used for?: This adapter connects diamond core drill bits with a 5/4" UNC female thread to diamond drilling machines with a 1/2" G male thread.
What thread connections does this adapter have?: The adapter features a 1/2" G female thread on the machine side and a 5/4" UNC (1 1/4") male thread on the drill bit side.
Is this adapter suitable for wet and dry drilling?: Yes, this steel adapter is suitable for both wet and dry diamond core drilling applications.
How do you mount this adapter?: You securely tighten the adapter onto your machine spindle using a matching open-end wrench.