Hikoki SDS‑Max Extension 1100 mm – accessory for SDS‑Max rotary hammers

The Hikoki SDS‑Max Extension 1100 mm is an accessory designed to extend the reach of SDS‑Max rotary hammers for drilling and chiselling tasks in hard‑to‑access areas. It keeps compatibility with SDS‑Max bits and connects directly to the tool holder, allowing users to perform deeper or more distant work without changing the main tool setup. The extension is intended for use on construction, renovation and maintenance sites where increased reach is needed while maintaining standard SDS‑Max bit retention.

Advantages

This extension provides 1100 mm of additional reach while preserving SDS‑Max bit compatibility and secure connection to the rotary hammer. The design enables precise transfer of impact energy and rotation through the extension, supporting effective drilling and chiselling at extended distances. Using a purpose‑made extension reduces the need for improvised adapters, maintaining tool balance and bit retention during operation.

Suitable for

• Drilling holes at depth or in recessed positions where the standard tool length is insufficient
• Chiselling and demolition work in confined or hard‑to‑reach spots
• Renovation and construction tasks requiring extended reach without changing SDS‑Max bits
• Maintenance work in installations, ceilings or wall cavities

Key specifications

• Length: 1100 mm total extension
• Shank system: SDS‑Max compatible connection for tool and bits
• Function: transfers rotary and impact force from tool to bit
• Construction: sturdy tubular shaft designed for jobsite conditions
• Connection: direct fit to SDS‑Max tool holder to maintain secure bit retention

How to use

Attach the extension to the SDS‑Max tool holder according to the rotary hammer manufacturer’s instructions, ensuring the locking mechanism engages fully. Insert an SDS‑Max bit into the extension’s bit end until it clicks into place. Check that both the tool‑to‑extension and extension‑to‑bit connections are secure before starting the tool. Operate the rotary hammer at appropriate speed and impact settings for the material being worked on, and support the extended assembly to maintain control and reduce vibration transfer to the operator.

Usage recommendations

Before each use inspect the extension and connections for wear or damage. Use personal protective equipment and follow the rotary hammer manufacturer’s guidance on maximum torque and impact settings when using extensions. For precise work, steady the tool and consider using support or secondary handles to control the longer assembly.