{"Images":["https://res.cloudinary.com/osg-usa-inc/image/upload/f_jpg,q_auto//Products%2FMilling%2FSolid%2FSquare%20End%2FList%20542/End_Mills_-_End_Mill_-_Double_End_Mills_-_List_542_-_Catalog"],"Overall Length - Inch (L)":["3.0625","3.25","3.375","3.5","4.125","5","5.625","6.125","6.375","3.125"],"Number of Flutes":"4","Diameter - Inch (D)":["0.125","0.1875","0.25","0.3125","0.375","0.5","0.625","0.75","0.875","1","0.140625","0.171875","0.203125","0.234375","0.265625","0.296875","0.328125","0.359375","0.390625","0.421875","0.453125","0.484375","0.53125","0.59375","0.65625","0.71875","0.78125","0.90625","0.8125","0.9375","0.96875","0.15625","0.21875","0.28125","0.34375","0.40625","0.4375","0.46875","0.5625","0.6875"],"Cutting Diameter Tolerance - Inch":["+0.0011 / -0","-0.0004 / -0.0015"],"Diameter - Fractional Size (D)":["1/8","3/16","1/4","5/16","3/8","1/2","5/8","3/4","7/8","1","9/64","11/64","13/64","15/64","17/64","19/64","21/64","23/64","25/64","27/64","29/64","31/64","17/32","19/32","21/32","23/32","25/32","29/32","13/16","15/16","31/32","5/32","7/32","9/32","11/32","13/32","7/16","15/32","9/16","11/16"],"Length of Cut - Inch (Lc)":["0.375","0.5","0.625","0.75","1","1.375","1.625","1.875","0.4375","0.5625","0.6875"],"Helix Angle - Degree":"30","Shank Diameter - Inch (d)":["0.375","0.5","0.625","0.75","0.875","1"],"Web Literature 4":"800388CA","Stainless Steels : 300":"M; Good","Substrate":"HSS-CO","Product Overview":"HSS-Co, Regular Length, Multiple Flute, Center Hole","Web Literature 1":"8002024CA-EM,186|8002024CA-EMT,76","Notes":"Other coatings available upon request.","Surface Treatment":["BRIGHT","TiN"],"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","Cast Iron":"K; Good","Low Carbon Steel : 1010; 1018":"P; Best","List Name":"COBALT HSS DOUBLE END SQ","Medium Carbon Steel : 1035; 1045":"P; Best","Mill Type":"Double End","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","Cutting Type":"Non-Center Cutting","Weldon Flat":"Yes","End Cut Type":"Square End","Length of Cut - Specification":["REGULAR","STUB","LONG"],"Cutting Direction":"RH","Helix Direction":"RH","Titanium : 6AL4V (30HRC)":"S; Good","Diameter-Sizes":"1/8\" - 1\"","Flute-Sizes":"-","Neck-Sizes":"-","Taper-Sizes":"-","Overall-Sizes":"3.0625\" - 6.375\"","Shank-Sizes":"0.375\" - 1\"","Friendly Name":"542","CategoryBrand":"OSG"}