Tungsten Carbide Burr Set Bearing Steel 1/8 Shank File Rasp Carve Engrave Hard Metal Wood Aluminum Stone Rotary Tool Power Drill

Difference Between Bearing Steel & Tungsten Carbide Rotary BurrsBearing steel and tungsten carbide rotary burrs differ greatly in hardness, wear resistance, durability, and application.1. HardnessBearing Steel: HRC 58–62, medium hardness.Tungsten Carbide: HRA 89–92 (equal to HRC 75+), extremely hard.2. Wear ResistanceBearing Steel: Low to medium, wears out quickly on hard metals.Tungsten Carbide: Very high, 5–10 times longer service life.3. ToughnessBearing Steel: Good toughness, not easy to chip or break.Tungsten Carbide: Brittle, can chip under heavy impact.4. Heat ResistanceBearing Steel: Softens at high temperatures.Tungsten Carbide: Stable at high speed and high temperature.5. ApplicationsBearing Steel: For wood, plastic, aluminum, copper, soft steel, DIY and light use.Tungsten Carbide: For stainless steel, hardened steel, cast iron, mold metal, industrial grinding.