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 instant power 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 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 jobsite work This portable conversion set expands tool capability by enabling drilling across wood, stone, brick, and concrete, making it a compact all-in-one accessory for construction crews, DIY upgrades, and daily maintenance Perfect for DIY enthusiasts and professionals tackling home improvement projects. Get reliable, rugged performance with this all-in-one drill adapter set. Specifications: Name: Rotary Hammer Adapter With Impact Drill Bits Set Adapter Size: 0.95in Diameter * 2.52in Length Drill Bit Sizes: 0.6cm (0.24in) 0.8cm (0.32in) 1.0cm (0.39in) 1.2cm (0.47in) Interface: Standard Square-Shank Four-Slot Material: High-Strength Steel Included Accessories: Matching Leather Rings And Pins 1/2 Pcs Rotary Hammer Adapter With Impact Drill Bits Set Color: As Shown Package Contents: 1*set Rotary Hammer Adapter