Check the listing for details. SF-5 Tree Shape Radius 1/2" Diameter Carbide Burr Single Cut. Condition: New. Listed at 20.00 USD. This SF-5 Tree Shape Radius Carbide Burr from GWS Tool Group is a high-quality cutting tool made in the United States. With a 1/2 inch diameter and 1 inch cutting length, this burr is perfect for metalworking and other abrasive applications. The C-2 Sub-Micron Grain with 10 percent Cobalt carbide grade ensures durability and precision cutting. The head shape of this burr is a Tree Shape Radius End with a Single Cut cutting edge style. It has a shank diameter of 1/4 inch and comes in a quantity of one. This item is not a custom bundle and has no modifications. Please note that this product contains chemicals listed under California Prop 65 Warning. Ideal for use in CNC, metalworking, and manufacturing industries, this burr meets the industry specification SF-5.