The wooden case makes it easy to store and protect these bits. So far I've only tried it with a reversible adhesive attachment. You need to create two templates, one for the tongue and one for the groove. Cutter height varies so make the same edge on all parts before adjusting to make matching parts. I played with the height of the drill to make sure the top and bottom edges of the shank were within the rabbet (i.e. the most vertical) part of the blade. Otherwise create a thin wedge on one of the faces. Use the image as a guide. When it comes to cut quality, you get what you pay for. There were obvious cracks on the top/bottom surface of the relatively soft pine material. I would consider marking the cutting line with a marking knife or template. The rest of the connection fits well. I would refer other reviewers who have experience with these oak and poplar tips.
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