SA CR-ST ZIRC 80 3/8 x 1-1/2 x 1/8 IN Available in coarse grades, the Standard Abrasives Zirconia Cartridge Roll is ideal for high-speed grinding and deburring on all metalsIts small size and shape enable it to blend and deburr inside holes and diameters of machined parts or on irregular surfaces and contours. Product Information Brand 3M Part # 7100093009 Origin Country Germany Product InformationArbor hole accommodates mandrel tool attachment for use with various high speed toolsAvailable as straight cylinder or full taperIdeal for high-speed grinding and deburring on ferrous and non-ferrous metalsLong-lasting zirconia alumina is well suited for coarse stock removalMulti-layer design continually reveals fresh abrasive for longevitySmall size enables operators to reach tight spots with high speedVersatile range of sizes and grades are designed to meet specific project needs