{"Overall Length - Inch (L)":["3.5625","3.75","4.25","5","6.125","6.25","7.25","8.5","10.5","11.75"],"Number of Flutes":["4","6"],"Diameter - Inch (D)":["0.25","0.3125","0.375","0.5","0.625","0.75","0.875","1","1.25","1.5","2"],"Cutting Diameter Tolerance - Inch":"+0.0011 / -0","Diameter - Fractional Size (D)":["1/4","5/16","3/8","1/2","5/8","3/4","7/8","1","1-1/4","1-1/2","2"],"Helix Angle - Degree":"30","Length of Cut - Inch (Lc)":["1.75","2","2.5","3","4","5","6","8"],"Shank Diameter - Inch (d)":["0.375","0.5","0.625","0.75","0.875","1","1.25","2"],"Web Literature 4":"800388CA","Stainless Steels : 300":"M; Good","Substrate":"HSS-CO","Product Overview":"HSS-Co, Extra-Long Length, Multiple Flute","Length of Cut - Specification":["EXTRA LONG","LONG"],"Web Literature 1":"8002024CA-EM,167|8002024CA-EMT,76","Brand":"OSG","Notes":"Other coatings available upon request.","Surface Treatment":["BRIGHT","TiCN"],"Alloy Steels : 4140; 4340":"P; Best","Units":"Inch","Die Steels":"P; Best","Hardened Steels : 35 HRC":"H; Good","High Carbon Steel : 1065":"P; Best","Hardened Steels : 35-45 HRC":"H; Good","Cutting Type":"Center Cutting","Cast Iron":"K; Good","Low Carbon Steel : 1010; 1018":"P; Best","List Name":"COBALT HSS CC-EXML","Medium Carbon Steel : 1035; 1045":"P; Best","Full Description":"High Performance Cobalt HSS End Mills for General Milling Applications","Short Description":"High Performance Cobalt HSS End Mills for General Milling Applications","Stainless Steels : 17-4PH":"M; Good","View Speed and Feed Page":"Here","View Catalog Page":"Here","Aluminum : 6061; 7075":"N; Good","Stainless Steels : 400":"M; Good","Aluminum : Casting":"N; Good","Coolant Thru":"No","Weldon Flat":"Yes","Mill Type":"Single End","End Cut Type":"Square End","Cutting Direction":"RH","Helix Direction":"RH","Titanium : 6AL4V (30HRC)":"S; Good","Diameter-Sizes":"1/4\" - 2\"","Flute-Sizes":"-","Neck-Sizes":"-","Taper-Sizes":"-","Overall-Sizes":"3.5625\" - 11.75\"","Shank-Sizes":"0.375\" - 2\"","Images":["https://res.cloudinary.com/osg-usa-inc/image/upload/f_jpg,q_auto//Products%2FMilling%2FSolid%2FSquare%20End%2FList%20558/End_Mills_-_End_Mill_-_Single_End_Multiple_Flute_-_List_558_-_Catalog"],"Friendly Name":"558"}