plugging chisel

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star drill

star drill
A long steel tool having a star-shaped point, used for drilling holes in concrete, masonry, and stone; it is handheld, the head being struck repeatedly with a hammer to provide the drilling action.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
If you don't plan to save the brick, remove it by chipping away the mortar that surrounds the brick using a plugging chisel and club hammer.
If you need to cut out a single brick or lift a paving slab you need to remove the mortar which is where a plugging chisel comes into its own.