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Multipurpose Hammer Drill. The new KHE 76 combination hammer is equally suited to drilling large holes in concrete and heavy chiseling, says Metabo. It offers a single-blow energy of 16 joules, 1,500 watts of input power, and a maximum impact rate of 2,735 blows per minute. Active vibration dampeners in the handles reduce operator fatigue, and an automatic safety slip clutch protects the user from kickbacks. The 181?2-pound tool can drill 2-inch holes in concrete using solid bits, and 6-inch holes using core bits. It costs about $1,200. Metabo Corp., 800/638-2264, metabo.us