Box Joint Jig to Table Saw Wood Machine with Exact Screw Very Accurate

woodworking machinery made of wood. box joint jig machine project. Finger joint jig to table saw with precision advanced screw. Each turn advance exactly 3mm inch). The blade has 4mm inch) thickness. We can do fingers with 4mm, 5mm, 6mm, 7mm, etc with thirds back screw andvanceds. I will do a mechanical part to increase thirds back in the screw in the next video. Visit my blog: