Dealmonger: Porter Cable Corner Chisel $10

Dynamite Tool Co. is selling this Porter Cable Corner Chisel for $10. Routing or drilling a hole leaves an internal radius. A corner chisel allows you to remove that radius and leave square corners for tenons in your woodworking project.
Porter Cable Corner Chisel [Dynamite Tool Co.]
Street Pricing [Google]
Via Amazon [What’s This?]
I used one of these when working at a door factory, I hope they fixed the issue with the weak spring, the knife portion works great, but the spring tends to wear out quickly and does not return after a bit of use.
or this one
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=38458&xcamp=google&utm_source=googlebase&utm_medium=cpc&zmam=33951326&zmas=12&zmac=112&zmap=38458