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.
Bessemer converter, schematic diagram. The Bessemer process was the first inexpensive industrial process for the mass-production of steel from molten pig iron prior to the open hearth furnace. The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron.