woodworkingboy
TreeHouser
The department of labor declined to participate in this thread, so I'll post for them.
http://www.osha.gov/SLTC/etools/logging/manual/felling/felling_direction/wedges.html
http://www.osha.gov/SLTC/etools/logging/manual/felling/felling_direction/wedges.html
. I wouldn't even know where to start gathering them all up.

