Set of seven custom made, Japanese chisels
Designed by me, these heavy-duty "Becksvoort pattern" chisels are trapezoid in cross section to get right into dovetail corners. Hand made by the Japanese Master chisel maker Akio Tasai. A layer of white steel with a Rc hardness of 65 is forged onto 18 layers of Damascus steel (mokume or "wood grain"). The shaft is twisted and the steel is acid etched. With white oak double hoop handles. Sizes 4.5, 6, 9, 12, 15, 18, and 24 mm (or about 3/16, 1/4, 3/8, 1/2, 5/8, 3/4,and 1"). With fitted case. Only one set made, extremely rare, these chisels are a work of art.
$5,875.

Dovetail marker
I made mine in 1975, out of dogwood, and it still has nice, crisp edges. In dogwood, hornbeam or apple, whatever I have available. About 3" long, with a 10° angle (unless you specify otherwise).
$25.

CHB Tool Designs:
Over the years I've designed a few tools to make our woodworking easier. Router bits: Flush panel router bit with 22° edge relief; round head and flat head screw slot bits to allow for wood movement; cove and bead bit. Also, expansion washers, used in conjunction with round head screw slot bit to allow for wood movement. Screws can be tightened to the washers and still move as the wood expands and contracts through the seasons. All of the above are sold by Lee Valley Tools, but most have been copied by unscrupulous manufacturers.
 
Lock chisels, right and left hand set, to allow lock strike mortises to be chopped out in narrow drawer openings and other areas with limited access. Available from Lie-Nielsen Toolworks