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A detailed buying guide: how to choose a cordless demolition hammer.
This section covers cordless demolition hammers with no drilling mode, designed for chiselling only: light 18 V models with an SDS Plus holder and more powerful 36–40 V models with an SDS Max or HEX holder. They are used to remove tiles, plaster and layers of concrete, cut chases and openings and demolish brick partitions. Having no cable is especially convenient on construction sites, on roofs and wherever there is no mains power, and the section suits both homeowners doing renovation and professional tradespeople. For general principles, read how to choose a cordless tool.
Light 18 V hammers (2–4 kg) suit tile and plaster removal, chasing and home renovation, while 36–40 V models (5–10 kg) are for breaking concrete and daily construction work. Choose the tool class according to the workload. See differences between professional and household power tools.
Impact energy of 18 V models is usually 2–5 J, while 36–40 V SDS Max hammers deliver 8–20 J. A high impact rate (2000–4000 bpm) speeds up removal of thin layers, while greater energy is needed for thick concrete. Read what is impact energy (J) and what is impact rate.
SDS Plus is common on light hammers, while SDS Max and HEX are used on heavy models. The chisel shape (point, flat, wide or channel) and length must match the material and task. See differences between SDS plus, SDS max, and HEX systems and how to choose a rotary hammer chisel.
A demolition hammer draws high current, so 4–5 Ah batteries are recommended for 18 V models and 4–8 Ah for 36–40 V models. Working with two batteries lets you continue demolition without a break. See cordless tool voltage (V) and battery capacity (Ah).
If you already own 18 V or 40 V batteries from the same manufacturer, you can choose a body-only version. Check whether the kit includes a battery, charger, chisels and a case. Read what is a unified battery platform.
A brushless motor uses battery energy more efficiently, runs cooler and needs no brush replacement. Most cordless demolition hammers today are fitted with this type of motor. See what is a brushless motor.
An anti-vibration system, a rotating auxiliary handle and a balanced design reduce strain on the hands during long work. Compare vibration level (m/s²) and weight including the battery. Read what is an anti-vibration system.
Wear safety glasses, ear protection, gloves and a respirator, and check the wall for cables and pipes. Remove the battery before changing the chisel or carrying the tool. See how to use a demolition hammer safely and how to use cordless tools safely.
At ToolsArmenia you can compare cordless demolition hammers by impact energy, voltage, tool holder, weight and kit contents and choose the right model for your jobs.
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