... -speed drilling 4.Reverse and variable speed functional switches. Electric Drill Specification:1. Spindle lock.2. Double insulation.3. High- ... 40'/40'HQ:5,180pcs/10,740pcs/12,590pcsAccessories:A chuck with key,a pair of carbon brush.Company introduction :We ... manufacture power tools such as angle grinder,electric drill,impact dirll,polisher,jig saw,electric planer,circular saw,trimmer ...