This Rotary Hammer Adapter with Impact Drill Bits Set converts your wrench into a high-torque hammer drill, using a heat-treated alloy steel core and 0.24-0.47 in bits to cut through concrete and brick with A fast-lock mechanism lets you switch from wrench to hammer-drill mode within seconds, giving you stronger torque transfer for faster hole-making during repairs, installations, and work The reinforced square-shank converter locks into most electric wrenches with a four-slot interface and dual retaining rings, ensuring a -stable attachment for cleaner drilling on demanding tasks Built from integral-treated alloy steel that resists deformation after thousands of impact cycles, this adapter maintains torque output and durability when tackling stone, masonry, and dense building materials This portable conversion set expands tool capability by enabling drilling across wood, stone, brick, and concrete, making it a compact accessory for construction crews, DIY upgrades, and daily maintenance, Weight: 0.110231131 pounds, Manufacturer: Uxsjakjsd