Cheston 10mm Powerful Drill Machine Kit for Wall, Metal, Wood Drilling with 78 Accessories in Tool Box Case 6 months warranty over manufacturing defects from date of purchase, C Care : 011-61300059 Ideal for drilling into a variety of materials such as wood, metal, plastic and masonry. Not designed to drill in concrete Chuck capacity : 10 mm, Speed : 2800 rpm, Wattage: 400 Watts, 5 wall bits, 13 HSS Bits (for metal, plastic) and other accessories included for drilling Ergonomically designed for ease of handling and e efficient cooling system 10mm chuck ideal for all types of domestic tasks Can be used for drilling on any kind of surface like concrete, wood and metal. It has a power lock button which assist in continuous drilling task. If you are trying to make a drill hole in the wall, first you need to make a hole with help of a nail and hammer and then use the drill machine with the drill bit. If you do it directly the drill bit is bound to break or the machine will not function properly