By Amana ToolVarious Shape Solid Carbide Head Brazed to Steel Shank Double Cut/End Double Cut/No End Double Cut Burr BitsBenefits of the DC flute include rapid removal of a broad range of materials combined with excellent operator control. It does this by incorporating a positive cutting rake angle that gives great bite into the material and yet, is not so aggressive that the operator fatigues quickly after using it in a hand piece. The steel shanks are ground, which sets them apart from our competitors. The solder joints are clean, with no excess solder gaping out from the sides between the carbide bud and the shank.Applications: To be used with air or electrically driven hand die-grinder with a typical collet mechanism or knee mill with an air-driven spindle speeder such as an Air Turbine product. Use of a quality spindle speeder may greatly improve performance of miniature tooling. Long Shank Burrs should be used at reduced speed.WARNING!: Not to be used in CNC machine or conventional routersFor use with: Aluminum Brass Bronze Cast Iron Chrome Copper Stainless Steel Steel: 40-55rc Steel: Carbon Steel: Nickel Steel Weldments TitaniumMore sizes, shapes & types available upon request.