FindBuyTool extra long Tree Radius End Carbide rotary burr makes deburring, milling, reaming process simpler.This cutting bur fits air or electric tools like die grinder, pneumatic rotary tool and high speed engraver. Technical information Head Dia. 3/8 Head Length 3/4 Shank Dia. 1/4 OAL 4-1/3 Ideal HRC 54< Cut Double Cut Head Material Tungsten Carbide Shank Material Alloy Steel Machine Die Grinders Pneumatic Rotary Tools High Speed Engravers Application Steel Cast Iron Stainless Steel (INOX) Nickel-Based Alloys Titanium Alloys SHIPPING DIAMETER UNIT Pcs Package in Plastic BoxNet Weight 34.2Package Size 114 x 13 x 13mm