Catalog number: ATI420D-4PC Features: ●NATO stock number obtained. ●High concentricity achieved by machining. ●M2 high-speed steel is used to achieve sharp cutting edge, high hardness and wear resistance. ●Used by mounting to a micro-stop. ●Set of 4 countersinks in a dedicated anodized aluminum holder. Applications: ●For aircraft sheet metal processing (taper formation). Specifications: ●Number of teeth (pieces): 3 ●Shank diameter: 1/4-28 ●Cutter tip angle (°): 100 ●Number of teeth: 3 ●Set contents: 3/32, 1/8, 5/32, 3/16 ●Body diameter 7/16 inch ●NSN#5133-01-428-5685 Material/Finish: ●M2 high-speed steel
