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China Electric Cordless Battery Drill Supplier Brief Introduction * Maximun drilling diameter in concrete: 22mm* Brushless motor and durable mechanism for efficient performance and runtime. * Lightweight design makes this 20V power hammer drills ideal for rod hanging, seismic and safety attachment, cable trayand strut mounting, clamp mounting, and rail mounting. China Electric Cordless Battery …

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Power drills come in either corded or cordless versions. Corded power drills offer reliability and strength at the expense of being tied to an electric cord at all times. Cordless drills, powered by onboard, rechargeable lithium-ion battery packs, help free the user from the power cord. However, battery packs are expensive and are prone to …

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