Woodstock International W1226 magnetic planer blade jig is a patented knife-setting system that lets you set planer knives in perfect alignment every time
It also allows you to shift nicked knives on 2-1/2"- 4" cutterheads to get a perfect cut with an accuracy of ¦.002"
Two jigs are needed for 15"- 20" planers; three for planers over 20"
For 12" and smaller planers with 1-7/8"- 2-1/8" cutterheads, use the Woodstock International MINI PLANER PAL(r)