The MICROJIG GRAK-404 is a GRAK-404 upgrade kit for GR-100+ pushblock — adds Stabilizing Plate, Deflector / Connector, and additional GripCenter Leg for thinner cuts and broader work pieces. The patented GripCenter Leg pins the work piece while keeping the operator’s hand clear of the blade — the design that defined the modern table-saw pushblock category.
Right tool for table saws, router tables, band saws, and jointers. Woodworking schools, makerspaces, and serious home shops use GRR-RIPPER as their default pushblock for thin-strip ripping, narrow stock, and any cut where fingers would otherwise come close to the blade.
MICROJIG is based in Winter Park, Florida and manufactures the GRR-RIPPER family of 3D pushblocks plus woodworking safety accessories. The patented GripCenter Leg keeps the work piece pinned through the cut while the operator’s hand stays clear of the blade — the safety design that defined the modern table-saw pushblock. Every GRR-RIPPER is molded and assembled in the USA.
