A Truly professional tool for drilling holes, as well as hammer chipping . it has innovative technical solutions for long lasting ,productive and comfortable work : high impact force , double anti-vibration , low weight ,effective heart dissipation , adjustment of rotational and impact speed , switchable brushes foe drilling holes and chiselling in concrete (K10111) - 220~230V   50/60Hz 850W    n0.950r/min   4250bpm 4.5J      26mm *(Reliable ,convenient and productive ) - what a real tool should be punch with increased power and low weight , ideal for hard and long work the vertical arrangement of the percussion mechansim provides a greater impact force than the product of the same power in the horizontal layout *(Three modes of operation ) - drilling, drilling with punch and punch make the product a vertalise tool for wide applications metal gearbox housing allows you to get the maximum from the product without compromising reliability *(Increased diameter and drilling speed for maximum performance ) -  chiseling and hammerless drilling function add extra functionality *(Catridge sds plus for quick change of consumable tools) - safety clutch to  protect the operator when blocking the drill  quick access to brushes for easy replacement Add lubricant reguraly . lubricate all  accessible mechanical parts with approx . 50g of grease . Mental front cover pull back and hold the locking sleeve . lock automatically , after the locking sleeve is released . Selector switch for drill/hammer drill