OneTime Molding This 49 inch electric concrete slotting machine features a onetime molding for quick and clean cutting of wall chases No need for any other auxiliary tools and second process you can form concrete pouring walls without dead corners Features 4800W motor, the high-efficiency machine generates a rotation speed of 6500 RPM. Adjustable Grooving: It is easy to install 1 to 8pcs saw blades. And the groove width and depth are adjustable to meet the need of different wall chases. Maximum depth: 1.61 in/41 mm. Maximum width: 1.65 in/42 mm. Built-in Infrared Beam: Our concrete cutter machine comes with a water pump and a long water pipe, used to reduce the dust. The electric wall cutter machine is also designed with infrared lighting and a moveable cover. The infrared rays make positioning and cutting more accurate. Double Handles: This wall chaser cutter is highly efficient with two ergonomic handles that are both angle adjustable. The cutter is more stable and labor-saving with front & rear handles while working Wide Application This electric concrete saw machine is widely used in decoration companies professional hydropower installation projects and construction sites suitable for ceramic cable ties concrete red brick hollow brick, marble, and so on.