MICROJIG GRGH-040 GRR-RIPPER Gravity Heel Kit GRR-RIPPER Gravity Heel Accessory is a fully adjustable heel with auto-retracting technology for reducing blowout. ROUTER TABLE Gravity Heels provide a secure backing to routing operations to prevent blow out. It can also be used as a template for repeat routing. The Gravity Heels are exceptional with long stock; they grab the tail end of your board and automatically retract mid-board. BANDSAW Smoother, safer andmore controlled cuts on the bandsaw will be second nature with the adjustability of the Gravity Heel. TABLE SAW Virtually eliminate tear out and increase control and stability when feeding long or short stock. Fits any existing GRR-RIPPER. Mounting Hardware Included. Made in the USA. A true MICROJIG Innovation.