wear resistance, long service life Fine processing to create different Precise structure details Suitable for various planers 1. First, put the two tool setting devices on the round tool body of the tool maker, and align the three surfaces of the tool setting device with the surface of the contact tool body (this is to that the three reference planes of the two tool setting devices are on the same datum 2. The scale on the two tool setting devices may have deviation, for example, one is on 0, the other is on 1, and then adjust the height of the wound knife millimeters higher than body as required, for example, 2 millimeters higher, so you need to adjust the knob 0+2=2, and the other is 1+2=3; Therefore, the scale does not need to be zeroed when assembling color:Black Material:High-carbon steel Package Contents: 2 x Planer Aligner Planer aligner Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.