Bosch PA1209 3-Degree No-Mar Overshoe for Dual-Mount Planer Guide Fence Allows planer to create 3 degree bevel on backside of (non-hinged) edge of door so that it doesn't hit the jamb Easily attaches to Bosch dual-mount planer guide fence Dual-mount planer guide fence is standard equipment with PL1632 and PL2632K planers