Check the listing for details. (25)3/4" x 1/8" x 1/8" Shank B70 Shape Pink Medium Grit Blackstone Mounted Point. Condition: New. Listed at 20.00 USD. 3/4" x 1/8" x 1/8" Shank B70 Shape Pink Medium Grit Blackstone® Mounted Point UNSPSC23131514ManufacturerFastenal Approved VendorBrandBlackstone® Product AttributesHardnessHardShank Diameter1/8"TypeMounted PointGradeMediumAbrasive MaterialAluminum OxideMounted Point Length1/8"Shank Length1-1/2"ApplicationDeburring, Finishing, Light Blending, PolishingColorPinkBond TypeVitrifiedSpecification29A80Physical ShapeInverted ConeMounted Point Diameter3/4"ShapeB70Operating Speed50930 rpmProduct Weight0.056 NotesManufactured by a Woman-Owned Business.High quality aluminum oxide mounted points are used to debur, grind, form, groove, and shape all kinds of metal, steel, hardened steel, ceramics, and wood.Points are made in 60 or 80 grit depending on size.Blue grade is hardest, Pink is medium and Red is the softest.Shank is 1-1/2" long.Refer to ANSI B7.1 for the maximum safe operating speeds.