Specification Brand : HUHAO BulletPoint1 : Material: HSS; 1.7mm cut diameter; 18mm cut length; 43mm total length BulletPoint2 : Metal drill bits for steel, Cobalt drill bits, HSS, Small micro quick change, Wood drill bits, Round shank BulletPoint3 : Each drill bit has a heavy-duty spiral flute design that produces fast chip ejection,Shorter cutting lips reduce torque for drilling in high-tensile-strength materials BulletPoint4 : Particularly successful in cutting through hard metals such as stainless steel copper aluminum cast iron, although they can be used for softer materials, too. BulletPoint5 : We do care about your satisfaction. We try our best to ensure each product is in perfect condition before you get it, but if something is not up to your satisfaction, please contact us for a full refund or replacement. Color : Brown EndCutType : 1 ExternallyAssignedProductIdentifier : 8011735403983 FinishType : TiCN ItemName : HUHAO 10PCS Twist Drill Bits Hss 1.7mm Shank Cut Diameter Small Micro Metal Drill Bit for Steel Aluminum Iron ItemPackageDimensions_Height : 1 inches ItemPackageDimensions_Length : 3 inches ItemPackageDimensions_Width : 1 inches ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : installer-drill-bits Manufacturer : HUHAO Material : High Speed Steel ModelNumber : 44305CC NumberOfFlutes : 1 NumberOfItems : 1 PartNumber : 44305CC ProductDescription : Specification: Shank diameter: 1-1.9mm Brand Name: HUHAO Material: Alloy Safety instructions: 1. The bladed product is not use for people under 18 years. 2. The item is only use for industrial cutting not hazardous article.