A.Drill Professional Electric Nail Cutter 35.000RPM Portable Rechargeable, Wireless Rechargeable Professional Electric Nail Cutter: milling cutter with a built-in battery and the battery can last 8 hours after full charge. Portable and convenient design for use: small size and there is a hook on the back of the cutter, which can be placed at the waist or somewhere, more convenient than the traditional nail angle With the leather case on the handpiece, it will not feel hot after long use High speed of revolution: high speed of 0-35000 RPM and you can control the speed with a rotary knob on the top of the cutter. Speed ??control: The rotary switch on the top of the cutter can control the speed from high speed to low speed.