GROOVING
1. Loosen the radius slider knob, slide it to the far left or far right and tighten the knob on both sides.
2. Place the black positioning block in the middle of the guiding rule.
3. Stuck the ruler body in the groove of the guiding rule, and tighten the knob through the ruler body and the black positioning block at the bottom to secure.
4. Stick the guiding rule closely to the side of the board, and then slide the bracket and the trimming machine in parallel to make smooth grooving.