This is a really handy tool to have in your arsenal, a 10mm diameter HSS bar 200mm long, one end is sharpened to a straight skew, the other is my variation on a point tool.
The skew end is a really simple skew to use, having a small cutting edge means you can control the tool over the full width of the cutting edge when used traditionally as a skew, using it square to the workpiece it will cut tenons, roll the tool at the required diameter and it'll cut the dovetail. Use for boxes, cutting on centreline for a clean parallel side.
The point end is my variation of a point tool. used horizontal on the centreline, it will cut vee cuts, sharpen detail etc, and can be used to cut small beads by first cutting a vee then drawing the tool out of the vee cut and swinging the tool around cutting on the wing for the first half of the bead, then use the other wing for the other side of the bead. I call this my variation as traditionally the point tool is sharpened on all three faces equally. mine has a top face and two side faces, and utilises the burrs raised when the sides are sharpened.
Sharpening instructions are included with the tool.