Woodstock W1226A Mini-Planer Pal, Pair Reviewhttp://tinyurl.com/lg9lxlu Woodstock W1226A Mini-Planer Pal, Pair For setting knives on 10-Inch - 13-Inch planers with 1-7/8-Inch to 2-1/8-Inch cutter headsAllows you to set knives perfectly every time to within +/- 0.001-Inch