Specification AgeRangeDescription : adult Brand : ZJchao BulletPoint1 : [Multiple Hole Sizes] Can punch holes ranging from 3/16 inch to 1/2 inch for versatile usage. BulletPoint2 : [High Hardness] With a hardness of 89 hrc, it can cut harder materials with ease. BulletPoint3 : [Wide Application] Suitable for stainless steel, sheet metal, wood, plastic, aluminum, copper, and more. BulletPoint4 : [Efficient Cutting] This step drill bit features a 4 flute design for faster, smoother cutting. BulletPoint5 : [ Material] Made of m35 hss and cobalt, this drill bit is wear- and long-lasting. BulletPoint6 : It is very suitable for cutting holes in various materials, including carbon steel, brass, wood, plastic, etc. Color : Black Oxide ExternallyAssignedProductIdentifier : 4547788500743 IncludedComponents : No IncludedComponents1 : 1 x Countersink Drill IncludedComponents2 : 4 x Drill Bits ItemName : Step Drill Bit Cobalt Flute HSS Metal Cutter for Stainless Steel ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 13 centimeters ItemPackageDimensions_Width : 13 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : step-drill-bits Manufacturer : ZJchao ModelName : PHTGTWMEDC ModelNumber : ZJchaoiz9p2m1qvx NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 1 PartNumber : ZJchaoiz9p2m1qvx ProductDescription : [Multiple Hole Sizes] Can punch holes ranging from 3/16 inch to 1/2 inch for versatile usage. [High Hardness] With a hardness of 89 hrc, it can cut harder materials with ease. [Wide Application] Suitable for stainless steel, sheet metal, wood, plastic, aluminum, copper, and more. [Efficient Cutting] This step drill bit features a 4 flute design for faster, smoother cutting. [ Material] Made of m35 hss and cobalt, this drill bit is wear- and long-lasting.