【Good Quality】: This rotary tool has a power of 780W and a maximum speed of 25000r/min. Superior performance can improve work efficiency and make your work more time-saving and efficient. The all-copper motor and ABS foot pedal are stable and can effectively prevent corrosion and ensure a longer service life, while the 4mm diameter shaft is stronger and more durable. 【Adjustable Speed】: The rotary tool grinder is equipped with foot pedal operation and supports infinitely variable speed, pressing up to decelerate and pressing down to accelerate. And this rotary grinder is designed with large heat dissipation ports on the body, which can effectively dissipate heat to prevent burn-in and prolong the life of the product. 【Convenient and Easy to Use】: Our rotary tool is designed with an external brush carbon port for you to change it more easily. Also, with a length of 3.3ft stainless steel hose, it provides you with a wider and more flexible working range. 【Special Design】: The shaft hanging grinder’s chuck adopts a three-flap spring design, which can be matched with different grinding heads at will, while the clamping force is strong, not easy to shake, and the operation is more stable, which is very suitable for precision work and can reach small spaces and delicate areas that other chucks cannot reach. 【Wide Application】: This flex shaft hanging grinder carver has a large gripping range of handle and supports gripping devices from 0.3-6mm. In addition to the item itself, it is equipped with various sandpaper sheets, blades, and bristle sweep for easy cutting, carving, sanding, and mold trimming, which can meet your various cutting and grinding needs., Manufacturer: BigJunBaoTrade