The invention discloses a shaving blade with adjustable shaving depth for a high-grade floor, which includes a machine body. The machine body is provided with a working cavity penetrating up and down, and an opening space is provided on the right wall of the working cavity. The bottom side of the wheel groove is provided with a fixed cavity on the left side of the wheel groove to open the power motor, thereby driving the motor shaft, the fifth bevel gear, the sixth bevel gear, the water pump shaft, and the cam to rotate. The device can automatically Adjust the depth and angle of the blade of the planer, so that when using a planer, woodworkers can automatically adjust the amount of the knife according to the actual situation, and then cooperate with the function of adjusting the angle of the blade to extend the life of the blade. During the process, the wood chips shaved off by the planer can be discharged out of the device through the removing device.

A thickness planer comprising a main body which includes a base structure and a support structure, a cutter carriage adapted to have a cutter assembly operatively mounted thereto, when in an installed position, and a separate roller carriage adapted to have at least one roller assembly operatively mounted thereto, when in an installed position. The cutter carriage and the roller carriage are each mounted to the support structure and arranged so that when the thickness planer is in an in use configuration, the cutter carriage and roller carriage are substantially isolated or separated from one another. The arrangement inhibits or substantially reduces forces generated during use being transferred from the roller carriage to the cutter carriage.