Specification Brand : HARFINGTON BulletPoint1 : Size - Diameter: 4.7mm / 0.185"; length: 100mm / 4"; finish: polished. (There may be warping deformation, but it will not have any impact on the use. Not recommended for use in working environments with high coaxiality requirements.) BulletPoint2 : Material - High speed steel tools provide high hardness, good toughness, and wear resistance, good for most general purpose applications. BulletPoint3 : Feature - Smooth surface, easy to form, no cracks formed. The round bar stock enables precise and accurate machining operations. Its uniform composition and fine grain structure ensure consistent performance and dimensional stability. BulletPoint4 : Applications - Round rods can be used in a variety of applications including turning, facing, drilling and threading. Widely used in processing milling cutters, gravers, punch needles, bearing sleeve rods, high-hard ejector pins, center pins, etc. BulletPoint5 : Note - Apply appropriate lubrication or cutting fluid to the cutting area to improve performance, prevent overheating and extend tool life. Add some oil when storing, and reduce contact with air or do not expose it to air to prevent rust. Color : Silver ItemForm : Rod ItemName : HARFINGTON 8pcs Round Rods 4.7mm x 100mm High Speed Steel (HSS) Lathe Bar Stock DIY Craft Tools for Turning Facing Drilling Threading ItemPackageDimensions_Height : 0.39 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 8 ItemShape : Round ItemTypeKeyword : steel-rods Manufacturer : HARFINGTON Material : High Speed Steel NumberOfItems : 8 PartNumber : hta230913hh000038 ProductDescription : High speed steel tools provide high hardness, good toughness, and wear resistance, good for most general purpose applications. Smooth surface, easy to form, no cracks formed. The round bar stock enables precise and accurate machining operations. Its uniform composition and fine grain structure ensure consistent performance and dimensional stability. Round rods can be used in a variety of applications including turning, facing, drilling and threading. Widely used in processing milling cutters, gravers, punch needles, bearing sleeve rods, high-hard ejector pins, center pins, etc. Steel rods can be easily cut or formed into replacement parts for almost anything, making them suitable for a variety of projects. You can cut it to any size you want. There may be warping deformation in the product, but it will not have any impact on the use of the product. Not recommended for use in working environments with high coaxiality requirements. Apply appropriate lubrication or cutting fluid to the cutting area to improve performance, prevent overheating and extend tool life. Store the bar stock in a dry place to prevent rust or corrosion. Please add some oil when storing, and reduce contact with air or do not expose it to air to prevent rust.