Diamond core bit adapter GEKO G40040 for SDS-Plus, 350 mm length

GEKO adapter G40040 is a 350 mm long diamond core bit adapter designed to connect core bits to SDS‑Plus rotary hammer drills. The adapter extends the effective reach of coring tools, allowing drilling and coring in deeper or hard-to-reach spots in concrete, masonry and similar substrates. It is intended for use with diamond or other compatible core bits and provides a straightforward mechanical interface to the SDS‑Plus chuck.

Advantages

The adapter's 350 mm length increases working depth without requiring longer drill bodies or special machines, reducing the need to reposition equipment. Its compatibility with SDS‑Plus rotary hammers makes it suitable for commonly used professional and consumer tools. The mechanical design provides stable engagement with the drill chuck and core bit, facilitating controlled coring in dense materials while helping to maintain concentricity and reduce wobble.

Suitable for

• Drilling and coring through concrete and reinforced concrete
• Installing plumbing, electrical conduits and HVAC penetrations
• Renovation work requiring deeper or recessed holes
• Accessing hard-to-reach drilling locations such as corners or behind structures

Key specifications

• Adapter type: core bit adapter for SDS‑Plus rotary hammers
• Overall length: 350 mm
• Compatible drill interface: SDS‑Plus chuck connection
• Intended coring tools: diamond core bits and other compatible core bits
• Typical applications: concrete, masonry and similar construction materials

How to use

Select a core bit suitable for the material and hole diameter required, then securely attach the core bit to the adapter following the core bit manufacturer's instructions. Insert the adapter's SDS‑Plus end into the rotary hammer's chuck and lock it according to the drill's standard procedure. Use appropriate drilling speed, feed pressure and cooling or flushing methods recommended for diamond coring; maintain steady alignment and allow the tool to cut without excessive force. After coring, retract the bit and release the adapter from the chuck before changing accessories.

Usage recommendations

Use proper personal protective equipment including eye protection, hearing protection and dust control. For diamond coring, consider water cooling or an appropriate dust extraction system to prolong bit life and reduce airborne dust. Inspect the adapter and connections before use to ensure secure seating and correct engagement with both the drill and the core bit.