Introducing the GRABO 90 Degree  Seam Setters, the professional solution for achieving perfectly aligned seams on porous and non-porous surfaces. Designed specifically for joining seams at a 90-degree angle, these seam setters are the go-to tool for kitchen islands, bar counters, and various other projects involving materials like granite, stone, marble, and similar stone materials. Compatible with all GRABO models, the GRABO 90 Degree Stone Seam Setters seamlessly attach to your existing GRABO tools, expanding their capabilities and providing unparalleled precision.