template_preview *NEW BOLTON TOOLS 6 PCS END MILL SET, TIN COATED WITH HSS-COBALT M42 MATERIAL BOLTON TOOLS6 PCS END MILL SET, TIN COATED WITH HSS-COBALT M42 MATERIAL - END MILLSProduct Description:The size you need is close at hand with this set of four-fluted end mills.Includes sizes 3/16" ; 1/4" ; 5/16"3/8" ; 1/2" ; 5/8”M42 material:M42 is a molybdenum-series high-speed steel alloy with an additional 8% cobalt. It is widely used in metal manufacturing because of its superior red-hardness as compared to more conventional high-speed steels, allowing for shorter cycle times in production environments due to higher cutting speeds or from the increase in time between tool changes. M42 is also less prone to chipping when used for interrupted cuts and costs less when compared to the same tool made of carbuye. Tools made from cobalt-bearing high speed steels can often be identified by the letters HSS-Co.. On May-30-14 at 15:58:15 PDT, seller added the following information: boltonhardware Store
