This is a set of 1.5 degree and 5 degree wedge for Bosch COLT Palm Router PR10E that will be necessary when you build an acoustic guitar. Guitar top is about 1.5 degree arched and the back is 5 degree arch. So if you use a router with the flat base plate that comes with the router to trim the overhangs or carving the side/top for binding/purflings of top or back, you will end up with trimming more woods than you are supposed to do. With these router wedges attached to the Bosch PR10E, you will be able to trim/curve guitar body safely and easily. I have made two guitar kits from StewMac (Stewart MacDonald) with these wedges and confirmed it works great.
I recommend to keep the print orientation as it. (with support from bed).