Specification Brand : IRWIN BulletPoint1 : This product is easy to use. BulletPoint2 : This product is highly durable BulletPoint3 : This product is manufactured in China BulletPoint4 : 18" long, 1/2" diameter, .370" shank BulletPoint5 : Hole in flute (head) makes it easy to pull wires through hole in wall BulletPoint6 : Boring action is faster, smoother, cleaner in most every material encountered in wiring installations BulletPoint7 : Longer flute section for deeper boring BulletPoint8 : Special flute finishing process assures quick chip removal, no clogging, no binding Color : Silver Configuration : configuration CustomerPackageType : 1 CuttingAngleString : 118.0 degrees ExternallyAssignedProductIdentifier : 6939025606956 ExternallyAssignedProductIdentifier1 : 100028849091 ExternallyAssignedProductIdentifier2 : 024721391087 ExternallyAssignedProductIdentifier3 : 0024721391087 ExternallyAssignedProductIdentifier4 : 5526680000130 ExternallyAssignedProductIdentifier5 : 0100028849091 ExternallyAssignedProductIdentifier6 : 00024721391087 FinishType : Uncoated (Bright) with TiN Tip GpsrSafetyAttestation : 1 IncludedComponents : Power Tool Accessories;Drill Bits & Accessories;drill-mills ItemDisplayDimensions_Height : 0.94 inches ItemDisplayDimensions_Length : 6.78 inches ItemDisplayDimensions_Width : 0.91 inches ItemName : Irwin 39108 1/2-Inch by 18-Inch Installer Twist Drill Bit ItemPackageDimensions_Height : 53.34 centimeters ItemPackageDimensions_Length : 0.762 centimeters ItemPackageDimensions_Width : 5.08 centimeters ItemPackageQuantity : 1 ItemShape : Shape ItemTypeKeyword : jobber-drill-bits Manufacturer : IRWIN Material : Alloy Steel MfgSeriesNumber : A002 ModelNumber : 39108ZR NumberOfFlutes : 1 NumberOfItems : 1 NumberOfPieces : 1 PackageLevel : unit PartNumber : 39108 ProductDescription : CORTOOL 1/16 inch Cobalt Drill Bits (20Pcs), M35 HSS Metal Jobber Length Twist Drill Bit Set for Hard Metal, Stainless Steel, Iron, Copper, Aluminium, Brass, Plastic & Wood 【20Pcs 1/16" Cobalt Drill Bits】20Pcs - 1/16" (Dia 1.59mm) x 0.87" (Flute Length 22mm), Total Length 48mm Metal Drill Bits.This drill bit fits the majority of power drill currently on the market. 【M35 Cobalt High Speed Steel】Industry grade M35 high speed steel drill bit set, much harder than HSS used in other similar drill bits set. These drill bits contain 5% Cobalt, which increases wear-resistance and durability. 【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed. 【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. Pay attention to speed, pressure and heat control during drilling. ProductSiteLaunchDate : 2004-04-01T00:01:00-00:00 Size : 15.25mm SkipOffer : 1 StreetDate : 2017-05-15T00:00:01Z Style : Jobber SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Alloy Steel SurfaceRecommendation1 : Metal SurfaceRecommendation2 : Wood UnitCount : 1 UnspscCode : 27111700