{"Images":["https://res.cloudinary.com/osg-usa-inc/image/upload/f_jpg,q_auto//Products%2FMilling%2FSolid%2FSquare%20End%2FList%20HP421/End_Mills_-_End_Mill_-_HY-PRO_CARB_-_List_HP421_-_Square_End_-_Catalog"],"Length of Cut - Metric (Lc)":["3","5","7","8","10","12","14","16","19","21","22","25","30","32","35","38"],"Number of Flutes":"2","Overall Length - Metric (L)":["39","51","64","70","76","89","102"],"Shank Diameter - Metric (d)":["3","4","5","6","8","10","11","12","14","16","18","20","22","25"],"Cutting Diameter Tolerance - Metric":"+0 / -0.038","Product Overview":"2 Flute,TiAlN","Diameter - Metric (D)":["1","1.5","2","2.5","3","3.5","4","4.5","5","6","7","8","9","10","11","12","14","16","18","20","22","25"],"Helix Angle - Degree":"35","Stainless Steels : 17-4PH":"M; Good","Web Literature 4":"800388CA","Stainless Steels : 300":"M; Good","Web Literature 1":"8002024CA-EM,118|8002024CA-EMT,59","Substrate":"Carbide","Hardened Steels : 35 HRC":"H; Good","Hardened Steels : 35-45 HRC":"H; Good","Cast Iron":"K; Good","Cutting Type":"Center Cutting","Hardened Steels : 45-50 HRC":"H; Good","Shank Tolerance":"h6","Alloy Steels : 4140; 4340":"P; Good","Die Steels":"P; Good","High Carbon Steel : 1065":"P; Good","Low Carbon Steel : 1010; 1018":"P; Good","View Speed and Feed Page":"Here","View Catalog Page":"Here","Coolant Thru":"No","Stainless Steels : 400":"M; Good","Units":["Metric","Inch"],"Weldon Flat":"No","Medium Carbon Steel : 1035; 1045":"P; Good","Full Description":"Performance Carbide TiAlN End Mills for Ferrous and Non-Ferrous Materials","Short Description":"Performance Carbide TiAlN End Mills for Ferrous and Non-Ferrous Materials","Mill Type":"Single End","List Name":"SQ","End Cut Type":"Square End","Length of Cut - Specification":["REGULAR","LONG","STUB"],"Cutting Direction":"RH","Surface Treatment":"TiAlN","Helix Direction":"RH","Nickel Alloy : Inconel":"S; Good","Titanium : 6AL4V (30HRC)":"S; Good","Diameter - Inch (D)":["0.046875","0.0625","0.078125","0.09375","1","0.109375","0.125","0.140625","0.15625","0.171875","0.1875","0.203125","0.21875","0.25","0.28125","0.3125","0.34375","0.375","0.40625","0.4375","0.5","0.5625","0.625","0.6875","0.75","0.875"],"Shank Diameter - Inch (d)":["0.125","1","0.1875","0.25","0.3125","0.375","0.4375","0.5","0.5625","0.625","0.75","0.875"],"Length of Cut - Inch (Lc)":["0.140625","0.1875","0.25","0.3125","1.5","0.375","0.5","0.5625","0.625","0.75","0.8125","0.875","1","1.125","1.25","1.375"],"Overall Length - Inch (L)":["1.5","4","2","2.5","2.75","3","3.5"],"Diameter - Fractional Size (D)":["3/64","1/16","5/64","3/32","1","7/64","1/8","9/64","5/32","11/64","3/16","13/64","7/32","1/4","9/32","5/16","11/32","3/8","13/32","7/16","1/2","9/16","5/8","11/16","3/4","7/8"],"Cutting Diameter Tolerance - Inch":"+0 / -0.0015","Diameter-Sizes":"1mm - 1\"","Flute-Sizes":"-","Neck-Sizes":"-","Taper-Sizes":"-","Overall-Sizes":"1.5\" - 102mm","Shank-Sizes":"3mm - 1\"","Friendly Name":"HP421","CategoryBrand":"HY-PRO CARB"}