Solid 3/8" Diameter - 1/8" Thick Grade 4900Solid CBNTwo Cutting EdgesTitanium Wear Indication CoatingRecomended for Diesel / Cast Iron RNGN 32 (3/8"x1/8") Grade 4900 Solid CBN Surfacing InsertSKU: RNGN-32CBN$145.00PriceQuantityAdd to Cart