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Jack hammers in the 15 to 20 kg class break concrete floors, slabs, footings, road patches and thick walls. Contractors, utility crews and demolition teams use them when a chipping gun is too light but a full-size breaker is more than the job needs.
How to choose a jack hammer
- Impact energy: more joules mean faster breaking. The Bosch GSH 16-30 delivers 41J, the DCA AZG02-16 43.2J, and the Makita HM1306 28.8J.
- Chisel holder: most heavy models use 30mm hex chisels, such as the Makita HM1306, Shibaru SH7900 and DCA AZG15. The Bosch GSH 14 C uses 22mm hex.
- Power: 1500W to 1900W motors, such as the Makita HM1511 and HM1512, keep up with long breaking sessions.
- Attachments: the Makita A-31485 tamping rammer and B-10300 clay spade extend the tool for compacting and digging.
Popular jack hammers at KHM Megatools
| Model | Brand | Spec | Good for |
|---|---|---|---|
| GSH 16-30 | Bosch | 1750W, 41J, 30mm hex | Heavy slab and floor breaking |
| GSH 14 C | Bosch | 1750W, 28J, 22mm hex | Floors and thick walls |
| HM1306 | Makita | 28.8J, 30mm hex | Concrete demolition on site |
| HM1511 / HM1512 / HM1502 | Makita | 1900W | Long breaking sessions |
| TH215456 | Total | 1700W, 16kg | Contractors on a budget |
| AZG02-16 | DCA | 1600W, 43.2J, 30mm hex | Road and footing work |
| SH7900 / PDB17008 | Shibaru / Ingco | 1500W / 1700W | General demolition work |
Jack hammer or breaker?
A jack hammer is a good middle ground for most floor and slab work. For walls and tiles, a lighter chipping gun is easier to handle. For road breaking and thick reinforced slabs, choose a 25 to 30 kg electric breaker. See chisel bits and Bosch jack hammers.
All products from KHM Megatools are genuine and covered by the manufacturer's warranty where applicable.
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