If you need to grind down some weld beads or do some porting work, FindBuyTool SF-5 Tree Radius End grinding burr will satisfy your expectatation. This razor sharp tungsten carbide cutter performs a smooth finish on cast iron or hard wood, producing very short chip. Technical information Head Dia. 1/2 Head Length 1 Shank Dia. 1/4 OAL 2-3/4 Ideal HRC 54< Cut Double Cut Head Material Tungsten Carbide Shank Material Alloy Steel Machine Die Grinders Pneumatic Rotary Tools High Speed Engravers Applications Steel Cast Iron Stainless Steel (INOX) Nickel-Based Alloys Titanium Alloys SHIPPING DIAMETER UNIT Pcs Package in Plastic Box Package Size 84 x 17 x 17mm