Specification Brand : GAHQMSDG BulletPoint1 : Made of high-quality High Speed Steel. Cobalt coated to reduce friction and heat. Groove design provides faster, smoother and cleaner cutting. Suitable for opening holes in various materials, including steel, brass, wood, plastic, etc. BulletPoint2 : Material: high speed 4241 BulletPoint3 : Size: 6 Steps: 3/16" to 1/2", (3/16", 1/4", 5/16", 3/8", 7/16", 1/2"); 9 Steps: 1/4" to 3/4", (1/4'', 5/16'', 3/8'', 7/16'', 1/2'', 9/16'', 5/8", 11/16", 3/4"); 10 Steps: 1/4" to 1-3/8", (1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1 -1/8", 1-1/4", 1-3/8") BulletPoint4 : 12 Steps: 3/16" to 7/8", (3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5 /8", 11/16", 3/4", 13/16", 7/8");13 Steps: 1/8" to 1/2", (1/8", 15/32", 7/16", 15/32", 1/4", 9/32", 5/16", 11 / 32", 3/8", 13/32", 7/16", 15/32", 1/2") BulletPoint5 : Package included: 5pcs BulletPoint6 : Includes a portable bag for easy portability and storage Color : 5pcs Opp Bagged ExternallyAssignedProductIdentifier : 7644568026220 ItemName : High Speed 4241 Cobalt Step Drill Bit Set 50 Sizes, 5Pcs Cone Drill Bits for Metal Lron Copper Aluminium Steel&Wood,Drilling Hole Tools ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : step-drill-bits Manufacturer : GAHQMSDG ModelNumber : 55888 NumberOfItems : 1 NumberOfPieces : 1 PartNumber : 55888 ProductDescription : About this item: high speed Ti Coating: The step drill has excellent sharpness and durability due to its high speed steel material and ti coating. 118° Split Point Tip & Dualflute Design increases cutting speed with selfcentering and prevents walking, clears chips faster and allows particles to escape easily. 50 Sizes in 5 Pcs: The step drill bit kit includes 5 standard pieces with totally 50 sizes for versatility, enough for your DIY needs. Widely Application: Ideal for drilling holes in plastic, aluminum, iron and many other types of sheet metal (Not recommended for stainless steel & wood Note 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. ProductSiteLaunchDate : 2025-03-24T09:32:16.677Z Size : One Size UnitCount : 1 UnspscCode : 27111700