[Features] Can help remove cuts while working, such as cutting, cutting, and curving. Comes with an arm folding mechanism that is convenient for replacing the blade with air pump. Power supply: 100 V 50/60 Hz. Power consumption: 90 W. Blade speed: 500 - 1,700 times per minute. Speed control: Width 9.7 x Depth 430 mm mm Top and Bottom Straw 0.5 inches (12 mm); Weight: 7.6 lbs (3.2 kg); Rated Usage Time: 15 minutes; Set Includes: 60 thread blades; 10 pieces for woodworking and metalwork; 10 pieces for coarse blade for woodworking (28090)