How to choose a rotary hammer: SDS-plus or SDS-max — 2026–2027
A rotary hammer is the main tool for concrete and brick: it drills holes for plugs, anchors and pipes, removes tiles and cuts chases. A model of the right class saves time and effort.
SDS-plus or SDS-max
An SDS-plus rotary hammer weighs 2–4 kg and drills holes up to 20–28 mm — the most common choice for renovation and electricians. An SDS-max rotary hammer weighs 5–12 kg, drills large holes and cuts pipe holes with core bits, and its chiselling power is enough to take down walls.
Impact energy and power
The key number is the impact energy in joules (J). 2–3 J is enough for a flat, 4–5 J for frequent work, 8 J and more for heavy building. Watts only show the electrical power, not the force of the blow.
Modes and safety
A three-mode rotary hammer drills, hammer-drills and chisels. Vibration control protects your hands on long jobs, and a safety clutch stops the rotation when the bit jams in rebar.
Cordless or corded
A cordless rotary hammer suits electricians and places without a socket; choose the same platform as your other tools. A corded one costs less for the same power and never runs flat on a long job.
Where to buy in Yerevan
Two Areg Tools shops, 28 Vardanants St and 1 Tigran Mets Ave, and our own service centre at 32 Vardanants St. Delivery in Yerevan in 1–2 working days. Price on request: +374 93 238766.
Frequently asked questions
Can a hammer drill replace a rotary hammer?
For a few small holes, yes, but in concrete a rotary hammer is several times faster and less tiring.
Which bits do I need?
SDS-plus bits for an SDS-plus hammer, SDS-max bits for SDS-max. They are in Accessories & bits.
How do I reduce the dust?
Connect an industrial vacuum or use a dust-collection attachment.
Where can I get a rotary hammer repaired?
At the Areg Tools service centre, Vardanants 32, Yerevan.
Rotary hammers by brand
Products
- Rotary hammers 250
- Accessories & bits 25980
- Drills & drivers 1135
- Industrial vacuums 551
