17 results found that include 54 products. Find a variety of high-quality air hammer options at Grainger. General-duty and industrial-grade air hammers can help provide fast and easy metal forging and fabricating. These pneumatic tools use compressed air to help drive into a workpiece to help shape, mark or smooth it. Choose a rugged air chipping hammer to help break up concrete.
besieging - the action of an armed force that surrounds a fortified place and isolates it while continuing to attack. beleaguering, military blockade, siege. blockade, encirclement - a war measure that isolates some area of importance to the enemy.
Picketing is a form of protest in which people (called picketers) congregate outside a place of work or location where an event is taking place. Often, this is done in an attempt to dissuade others from going in (crossing the picket line), but it can also be done to draw public attention to a cause.