Precise Slotting: The guiding function helps you to determine the position for cutting and reduce the error. Dust-free Slotting: The water pump with a 9.8ft hose can supply water quickly, improve cutting efficiency, reduce dust splashing during cutting, lower the temperature of the saw blade while extending its service life, and protect the user's health. You can also connect it to a vacuum cleaner (not included). Humanized Design:The main handle can be rotated 180° through the handle rotation button to meet horizontal or vertical cutting needs, and the front auxiliary handle can be adjusted in angle, making it easy to control to achieve a good balance and high-grooving performance. High Efficiency:With 2800W strong power, 7000rpm high speed, manually adjustable slot depth, and thickened sharp blades of 4.92" in diameter, it can do one-time grooving with a maximum grooving depth of 1.42" on the wall without secondary processing. Adjustable Depth & WidthYou can adjust the slotting depth142 inches max by adjusting the bottom plate of the product and you can also change the number of blades to adjust the cutting width to meet the different needs of your daily work., Manufacturer: QAXRZCUCD