... 2. Double insulation . 3. High-speed drilling. 4. Valiable speed Impact drill: Product description Item NoHS1007Max Drilling Dia13mm/16mmRated Input Power900WVoltage/Frequency110 ... manufacturer for power tools, such as angle grinder,electric drill,impact dirll,polisher,jig saw,electric planer,circular saw, sander, ... our products are various.6, OEM service is available. HS1010 Impact Drill 13/16mm 900W