uxcell Double Cut Grade High Carbon Hardened Steel Half Round File with Rubber Hand Grip Handle, 10-Inch

1. High Carbon Steel Ensures Longevity and Strength.
2. Second-cut grade is great for deburring, shaping, and sharpening.
3. Round side with double-cut teeth puts a smooth finish on interior contours and holes.
4. Flat side with cross-cut teeth removes material quickly for fast rough-shaping of larger surfaces and edges.
5. Precision Milled, Tempered and Coated Teeth provide durable cutting and good performance.

Specifications:
Product Name: Half Round File
Material: High Carbon Steel, Plastic
File Size: 250mm / 10 Inch
File Grade: Second Cut; File Teeth: Double Cut
Handle Size: 110mm / 4.3 Inch; Total Length: 370mm / 14.57 Inch
Package Content: 1 x Half Round File

Do 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 the file: rub a small amount of oil into the teeth of the file to:
1. Make cutting easier from the loss of friction of metal on metal
2. Remove the chance of having pins to form and stick in the teeth
3. Keep the dust down and make cleanup so as to breath much easier
4. Rust protection on the piece and the file itself.
Using Oil, do not forget that requires the surface to be clean.