Application It is suitable for materials such as steel, marble, granite, cement, wood, ceramic tiles, etc., to perform tasks such as opening holes for doors and windows, grooving, cutting on roads and walls, stone processing. It is very suitable for factories, workshops, households, wood industry, and DIY work. How to Replace the Blade 1. Press and hold the locking button. 2. Turn the spacer with a spanner. 3. Place the saw blade and cover the spacer. 4. Press and hold the locking button and tighten the spacer. Specifications Material: ABS, Copper, Aluminum Alloy, Iron Color: Orange, Black, Blue Style: Modern Power Source: Corded Electric Motor Type: Pure-copper Motor Dust Removal Method: Water Wet Surface Treatment: Electroplating, Sandblasting Speed: 3800r/min Power: 3000W Max. Load Power: 5800W Saw Blade Rotation Direction: Turn Back Voltage: 220V Noise: About 70DB Cutting Depth: 13.5cm/5.3in Main Handle Rotation Angle: 180 Power Cord Length: 2.9m/9.5ft Main Handle Width: 14cm/5.5in Sub-Handle Width: 15cm/5.9in Saw Blade Diameter: 35cm/13.77in Saw Blade Bore Diameter: 2.54cm/1in Saw Blade Thickness(Cutting Width): 3mm/0.12in Gross Weight: 12.25kg/27lbs Net Weight: 11.05kg/24.36lbs Product Size: 65*37cm/25.6*14.56in Package Size: 57*37.5*20.5cm/22.44*14.76*8.07in Package Included 1* Concrete Saw 1* Saw Blade 1* Protective Cover 1* Secondary Handle 1* Water Tube 1* Suction Pump 1* English Manual All Accessories for Assembly Notes 1. Please carefully read the manual and strictly follow the precautions to have a better experience. 2. When using water for dust removal, please note the machine head should be facing downwards to prevent water from flowing into the machine body. And when cleaning the machine, water should be avoided from entering the machine through the ventilation opening. 3. Please note the reason for the saw blade folding back: The saw blade folding back is because the hand has cushioning to withstand this recoil. This steering makes it easier for users to apply greater thrust and to some extent accelerate cutting speed. 4. Please regularly check the carbon brushes for wear and replace them promptly if there are large sparks. Before inspection or maintenance, please turn off the machine and unplug it. 5. When the machine slows down, you can raise the machine to idle for 1 minute and then continue running to avoid overloading and burning. 7. Please note that protective equipment must be worn when using this product.