A chipping hammer is a specialized masonry hammer with two sharp, pointed heads, designed to chip off mortar residue, protruding stone pieces or old plaster from masonry. Unlike a standard hammer, both ends of the head are narrow and pointed, giving the user precise control when removing unwanted material from brick or stone surfaces.
Design and use
The chipping hammer, known in Dutch as a “bikhamer,” typically weighs between 500 grams and 1.5 kilograms. Its dual pointed heads allow the mason to strike at various angles without having to rotate the tool. The points concentrate force on a very small area, making it effective at breaking away stubborn mortar joints, old rendering or irregular stone edges.
When repointing brickwork, the chipping hammer is the go-to tool for removing deteriorated mortar from joints before fresh mortar is applied. The mason holds the hammer close to the head for controlled, light taps or grips it near the end of the handle for more powerful strikes. On demolition and renovation projects, chipping hammers are used to strip entire walls of old plaster or roughen surfaces so that a new coat of render adheres properly.
Practical tips
Always wear safety glasses when using a chipping hammer, because small fragments of stone or mortar will fly off with every strike. Gloves are also recommended to absorb vibration and protect against sharp debris. For larger areas of plaster removal, consider pairing the chipping hammer with a cold chisel to speed up the work.
Inspect the hammer head regularly for mushrooming or cracking at the tips. A damaged head can cause unpredictable chip-off and is a safety hazard. Replace the hammer or regrind the points when they become visibly worn.
Related terms
- Chipping
- Mortar
- Masonry
- Stone
- Chisel
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