8" Second Cut Grade High Carbon Hardened Steel Flat Mill File with HandleCategory: Square Second Cut File1. High Carbon Steel Ensures Longevity and Strength.2. Second-cut grade is ideal for deburring, shaping, and sharpening.3. Single-cut teeth creates a smooth finish on interior contours and holes.4. Precision Milled, Tempered and Coated Teeth provide durable cutting and good performance.5. Large, comfortable handle gives you a sure grip for controlled strokes and pressure.6. Mill File is a versatile machinist file for working with metal, plastic, and wood. Ideal for garages, factories, engineering, workshop and DIY use.Specifications:Product Name: Mill FileMaterial: High Carbon Steel, PlasticFile Size: 200mm / 8 InchFile Grade: Second Cut; File Teeth: Single CutHandle Size: 110mm / 4.3 Inch; Total Length: 310mm / 12.2 InchPackage Content: 1 x Mill FileWeight: 210g; Color: Gray, Black, OrangeDo not try to file hardened steel with a hardened steel file; you will quickly ruin the file. Also diamond-embedded files should not be used on soft materials, including many soft steels, as this will cause the diamonds to be torn out. Clean out any bits of file metal with a stiff wire brush. Chalk/oil/lard the file: rub a small amount of lard or oil into the teeth of the file to:1. Make cutting easier from the loss of friction of metal on metal2. Remove the chance of having pins to form and stick in the teeth3. Keep the dust down and make cleanup so as to breath much easier4. Rust protection on the piece and the file itself.Using Lard or Oil, do not forget that requires the surface to be clean. For CALIFORNIA residents only: WARNING: This product contains chemicals including DEHP, which is known to the State of California to cause cancer and birth defects or other reproductive harm.Please note that by posting this Proposition 65 warning, we are notifying you that one or more of the Proposition 65 listed chemicals may be present in a product. With Unique Bargains' products, the exposure to these chemicals may be of no significant risk to you, but out of caution, we have elected to place this warning on our site to make sure our customers are informed.You can find more information at http://www.oehha.ca.gov/proposition-65/about-proposition-65.