ATC TRG 422-RH20VG TRG Rotary Hammer 20mm Drill Machine Heavy Duty 800W with 3 Drills Rotary Hammer Drill(20 mm Chuck Size, 800 W)
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A rotary hammer is a power tool that can perform heavy-duty tasks such as drilling and chiseling hard materials. ... However, rotary hammers use a piston mechanism instead of a special clutch. This causes them to deliver a much more powerful hammer blow, making it possible to drill bigger holes much faster.