This round fine green Holey Galahad is SSG 390 grit on the TC scale. There’s no heat buildup and is easy to control. Fits most 4½" (115mm) and European 125mm angle grinders with our Recessed Universal Nut. Maximum 14,000 RPM. Discs are 4" (100mm) in diameter and feature patented structured tungsten carbide teeth bonded to steel discs over the total cutting surface. Tungsten carbide needles are manufactured in a 5-stage patented process. Made in USA.
Patent Pending Discs provide you with an uncanny ability to see the surface being sanded through the disc as it spins.