If you aren't familiar with the abilities of these bits, I will be making a video when we get back from North Carolina. The geometry of these bits is helpful in getting clean entry and exits holes as well as drilling at angles, making them great for making chairs. Plus, seeing a ribbon like shaving pour out of the hole proves that drill bits really are woodworking tools, deserving of attention and respect just like a plane or chisel.
The bits are available in sets of 5 as shown for $110 plus $10 for shipping. They are made from American made High Speed Steel and include 5/8", 1/2", 7/16", 3/8" and 11/32".
The larger bits require a drill with a 1/2" chuck.
Charlie will have some sets available for purchase at WIA and is accepting orders at email@example.com. And of course, feel free to contact me directly if you have any questions, firstname.lastname@example.org