Specification Brand : Star-M BulletPoint1 : Shaft Diameter: 0.25 inches (6.35 mm) (hexagonal shaft) BulletPoint2 : Compatible models: Impact driver 14.4 V or above, drill driver 14.4 V or above, electric drill, drill machine BulletPoint3 : Material: Normal Steel/Electroless Nickel Plated Finish BulletPoint4 : Appropriate Speed: 3,000 rpm or less; *Hole holes in resin material 0.6 inch (15 mm) or more: less than 1,300 - 3,000 rpm BulletPoint5 : Applicable Materials: General wood, hardwood, bamboo, PVC, acrylic, hard rubber BulletPoint6 : Sharp Cutting Edges: Side spurs help in cutting the wood cleanly, leaving smooth, flat-bottomed holes CuttingAngleString : 14 degrees ExternallyAssignedProductIdentifier : 4962660600562 ExternallyAssignedProductIdentifier1 : 721511669806 ExternallyAssignedProductIdentifier2 : 0721511669806 ExternallyAssignedProductIdentifier3 : 00721511669806 FinishType : Chrome GpsrSafetyAttestation : 1 IncludedComponents : No ItemName : Star-M 601-160 Bamboo Drill, for Drilling Acrylic ItemPackageDimensions_Height : 18 centimeters ItemPackageDimensions_Length : 1.7 centimeters ItemPackageDimensions_Width : 4.3 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : brad-point-bits Manufacturer : スターエム(STAR-M) Material : Chrome Vanadium Steel Material1 : High Carbon Steel Material2 : Chrome Vanadium Steel ModelNumber : 601-160 NumberOfFlutes : 3 NumberOfItems : 1 PackageLevel : unit PartNumber : 601-160 ProductDescription : This product is made of high speed steel and cobalt material. After using full grinding process, it has stronger cutting ability and longer service life. Suitable for processing non-ferrous metals (such as copper and aluminum), non metallic and ferrous metals (such as iron, steel and stainless steel). Straight shank works in both keyed and key-less drill chucks. The advantages of full grinding drill bit:High geometric precision, strong cutting ability. Smooth surface finish, long service life. Wider using range (rough processing, finishing, semi finishing), and comes with edge clear function, make processing products have better surface finish.