Extension for Diamond Core Drill Bit GEKO 1 1/4" (30 cm)

Extension for Diamond Core Drill Bit GEKO 1 1/4" (30 cm) is an accessory designed to increase the working length of compatible diamond core drilling systems. It provides an additional 30 cm of reach and connects via a 1 1/4" threaded joint to matching core drill mandrels and diamond bits. The extension is intended for use with concrete, masonry and reinforced concrete when standard bit length does not allow access to deeper drill lines.

Advantages

The GEKO 1 1/4" extension offers a straightforward mechanical solution to extend drilling depth without changing base equipment. It keeps alignment with the core drill axis and preserves the rotational stability of the bit when used with compatible mandrels. The standard 1 1/4" connection ensures compatibility with many core drill systems, while the 30 cm length gives a practical increase in reach for common deep-drilling tasks.

Suitable for

• Extending reach when drilling deep holes in concrete and reinforced concrete
• Core drilling in masonry, brick and block walls where extra length is needed
• Situations where replacing the entire bit with a longer one is impractical
• Renovation and construction tasks that require through-holes or deep anchors

When it may not be suitable

This extension is intended only for systems that use a 1 1/4" threaded connection and compatible mandrels. It should not be used with incompatible thread standards or with bits that exceed the mechanical limits of the host drill equipment. Using the extension to achieve extreme lengths without proper stabilization can increase vibration and wear, and may reduce drilling efficiency.

Key specifications

• Connection type: 1 1/4" threaded joint
• Length: 30 cm
• Intended material use: concrete, reinforced concrete, masonry
• Function: extension for diamond core drilling systems

How to use

Screw the extension into the core drill mandrel or directly into a compatible bit using the 1 1/4" thread until firmly seated. Ensure the mating threads are clean and undamaged. After attaching the extension, tighten according to the mandrel manufacturer's recommendations and verify concentric alignment before operation. Use appropriate coolant or water feed for wet core drilling and follow the drill unit's speed and feed rate guidelines for the diamond core bit being used.

What to consider before purchase

• Verify that your core drill mandrel or bit uses a 1 1/4" threaded connection
• Confirm that a 30 cm extension provides the required additional reach for your task
• Check the mechanical limits and stabilization options of your drill rig to avoid excessive vibration

Usage recommendations

For best results use the extension only with compatible mandrels and diamond bits, maintain proper coolant flow for wet drilling, and support long assemblies to reduce deflection and wear. Regularly inspect threads and components for wear or damage and replace if deformation is present.