Specification Brand : HTNAFONI BulletPoint : Micro Drill Bits Color : One Color ExternallyAssignedProductIdentifier : 7341569650422 ItemName : 6-50mm HSS 6/8 Flute 60/90/120 Degree Chamfer Countersink Drill Bits(6/8/10/12.5/14/16/18/20/22/25/30/32/35/40/45/50mm) 1Pcs(22mm(120 Degree)) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : micro-drill-bits Manufacturer : HTNAFONI ModelNumber : HTNAFONI NumberOfItems : 1 NumberOfPieces : 1 PartNumber : HTNAFONI ProductDescription : Micro Drill Bits Specification: Made from HSS. Can cut varied materials cleanly and accurately. Can finish the conical surface processing once. For small cutting output. The one-piece design can help the chip fall down more conveniently, can will reduce the blocking to delay the working.