Main Features:  Ergonomic anti-slip handle delivers comfort and control.  Infinitely variable speed, control the power as you like.  The detachable auxiliary handle can rotate 360 degrees.  Easy to switch between forward / reverse mode and safe locking mode.  1.5-13mm anti shake 6D fine steel drill chuck for quick and simple bit replacement.  High strength motor, longer service life, high impact force and high wear-resistant precision.  Can easily solve a variety of household decoration problems, wall drilling, home installation, disassembly, etc.  Depth auxiliary ruler: Reserved drilling depth, avoid drilling too deep or through the wall.  One key switch between flat drill function and impact function: When you need to use the drill function, you only need to switch with one key, no need to replace the drill, saving time and effort.     Specification:  Style(Option): Carton packaging / Plastic box packaging;  Voltage: 220V;  Power: 1200W;  Speed: 0-3800RPM;  Rated Frequency: 50Hz;  Maximum Drill Diameter: 16mm;  Drill Bit Clamping Range: 1.5-13mm;  Product Size(L * W * H): About 25cm * 8cm * 17cm / 10' * 3' * 6.7'.     Package Contents:  Type A:  1 * Electric Impact Drill;  1 * Key;  1 * Auxiliary Pen;  1 * Auxiliary Ruler;  1 * Auxiliary Handle;  1 * English User Manual;  1 Set Drill Bit Accessories.  Type B:  1 * Electric Impact Drill;  1 * Key;  1 * Auxiliary Pen;  1 * Auxiliary Ruler;  1 * Auxiliary Handle;  1 * English User Manual.