Jack Hammer (15-20 kg Demolition Hammer)

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...
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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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