power tools ,MOD:2601 (ZIA-TK-26 SRE), Impact times 0~4000/min, Rated ... input power 800W Three functions Popular model power toolsMOD:2601 ZIA-TK-26 SRE ROTARY HAMMER Max hole opening26mm / Concrete13mm ... working donot feel tired .*Three functions power tools , Rotary Hammer 2601