Specification Brand : Micro 100 BulletPoint : Includes 5 pieces BulletPoint1 : Precision ground quick change blank designed for creating custom profiles requiring a split face BulletPoint2 : Proprietary Micro-Quik quick change system maximizes productivity through reliable accuracy and locational repeatability BulletPoint3 : Precision manufactured in the USA ExternallyAssignedProductIdentifier1 : 728709165997 ExternallyAssignedProductIdentifier2 : 0728709165997 ExternallyAssignedProductIdentifier3 : 00728709165997 FinishType : Uncoated ItemName : Micro 100 QSP-312-2.0 Half Round Blank - Quick Change, 5/16" Shank Dia, 2" OAL, Uncoated ItemPackageDimensions_Height : 0.762 centimeters ItemPackageDimensions_Length : 4.826 centimeters ItemPackageDimensions_Width : 0.762 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : drill-blanks Manufacturer : Micro 100 Tool Corporation Material : Carbide ModelNumber : QSP-312-2.0 NumberOfItems : 1 PartNumber : QSP-312-2.0 ProductDescription : Precision Ground - Specifically made as blanks for precision drills. Republic blanks have been used for many purposes over the years. Republic H.S.S. blanks have been used as shafts, arbors, guide rods, rollers, gages, alignment pins, punches, knockout pins, as well as for stock in the manufacturing of specialty tools and instruments. With tight dimensional tolerances, Republic drill blanks are perfect for any project needing precise finished ground stock. Drill Blank Tolerances: Up to .5000" (-.0002" or .005mm), from .5001" to .6250" (-.0003 or -.008mm), from .6251" to 1.0000" (-.0005" or -.013mm). ProductSiteLaunchDate : 2014-11-29T16:11:22.721Z SurfaceRecommendation : Alloy Steel UnitCount : 1 UnspscCode : 27110000