[TOTAL seventy two RATCHET GEARS] It is a screwdriver with an incredible variety of seventy two ratchet gears Work performance is progressed because screws can be tightened and removed very quickly[HEAVY DUTY STRUCTURE] Since the bit insertion port is deep, you can use it with out tense about rattling The magnetic bit prevents the screw from falling[ROUND BALL GRIP] The ball grip handle is easy to apply drive Also, the fast-turning handle can flip the screws with just your fingertips[SWITCH WITH ONE HAND] You can switch between tightening, loosening, and solving the bit with a single change Enable to switch with one hand[PRODUCT INFORMATION] Magnetic Bit: Phillips +2mm, Flathead -6mm | Bit Length: 5" (135mm) *Available bit length is over 65mm | Bit Slot Depth: 1" (45mm) | Bit Size: 1/4" (6) | Made in Japan