Indexable Thread Mill: 1.42" Cut Dia, 2.56" Max Hole Depth, Steel MPN:5593181

This indexable counterbore features a diameter of 1-3/8 inches and a 3/4-inch shank diameter to accommodate various indexable drill bit sizes when creating counterbores in metallic materials such as aluminum, steel or titanium alloys. Its unique design provides three different cutting edges that can be resharpened by turning it around after each use ensuring longevity and cost efficiency compared to solid carbide tools which need replacement when dull. Ideal for machinists, aerospace engineers or manufacturers in industries such as automotive repair shops where creating accurate and consistent counterbores with precision is critical, this tool delivers unmatched performance and durability at an affordable price point. With its ability to create complex shapes effortlessly while reducing set up time due to its easy indexability, the 1-3/8 Insert Indexable Counterbore remains a favorite amongst professionals who seek reliability and precision on their day-to-day operations.