{"Images":["https://res.cloudinary.com/osg-usa-inc/image/upload/f_jpg,q_auto//Products%2FThreading%2FStyle%2FThread%20Mills%2FList%2016631/Taps_-_Thread_Mill_-_A_Brand_AT-1_-_List_16631_-_NPTF_-_Type_2","https://res.cloudinary.com/osg-usa-inc/image/upload/f_jpg,q_auto//Products%2FThreading%2FStyle%2FThread%20Mills%2FList%2016631/Taps_-_Thread_Mill_-_A_Brand_AT-1_-_List_16631_-_NPTF_-_Type_3","https://res.cloudinary.com/osg-usa-inc/image/upload/f_jpg,q_auto//Products%2FThreading%2FStyle%2FThread%20Mills%2FList%2016631/Taps_-_Thread_Mill_-_A_Brand_AT-1_-_List_16631_-_NPTF_-_Type_4"],"Overall Length - Inch (L)":["3","3.5","4"],"Major Diameter - Inch":["0.0625","0.125","0.25","0.375","0.5","1"],"Number of Flutes":["4","5","6"],"Threads Per Inch":["27","18","14","11.5"],"Neck Length - Inch (L1)":["0.48","0.72"],"Diameter - Inch (D)":["0.223","0.302","0.381","0.459","0.617","0.737"],"Shank Diameter - Inch (d)":["0.25","0.3125","0.5","0.625","0.75"],"Length of Cut - Inch (Lc)":["0.407","0.611","0.786","0.957"],"View Speed and Feed Page":"Here","View Catalog Page":"Here","Thread Size - Inch":["1/16","1/8","1/4","3/8","1/2","1"],"Helix Angle - Degree":"11","Type":["3","4"],"Web Literature 1":"8002024CA-TP,28|8002024CA-TPT,31","Web Literature 3":"800384CA|80064CA|80062CA","Web Literature 4":"800390CA","Web Literature 2":"80061CA-V2","Short Description":"Advanced Performance One Pass Thread Mill","List Name":"AT-1 NPTF","Substrate":"Carbide","Product Overview":"Carbide, EgiAs Coating, NPTF","Surface Treatment":"EgiAs","Feature 3":"EgiAs Coating","Benefit 3":"For exceptional wear resistance","Benefit 4":"For high wear resistance and toughness","Notes":"For internal threads only","Benefit 1":"For reduced vibration","Hardened Steels : 35 HRC":"H; Best","Hardened Steels : 35-45 HRC":"H; Best","Shank Tolerance":"h6","Web Video 1":"https://youtu.be/ladZnTkQl_E","Web Video 2":"https://youtu.be/ladZnTkQl_E","Web Video 3":"https://youtu.be/ladZnTkQl_E","Units":"Inch","Benefit 2":"Increases tool stability","Cast Iron":"K; Best","Stainless Steels : 300":"M; Best","Stainless Steels : 17-4PH":"M; Good","Stainless Steels : 400":"M; Good","Aluminum : 6061; 7075":"N; Best","Aluminum : Casting":"N; Best","Coolant Thru":"No","Meets 2B Class of Fit":"No","Meets 3B Class of Fit":"No","Meets 4H Class of Fit":"No","Meets 6H Class of Fit":"No","Thread Type":"NPTF","Alloy Steels : 4140; 4340":"P; Best","High Carbon Steel : 1065":"P; Best","Low Carbon Steel : 1010; 1018":"P; Best","Medium Carbon Steel : 1035; 1045":"P; Best","Cutting Direction":"RH","Helix Direction":"RH","Feature 2":"Right-Hand Cut & Left-Hand Helix Geometry","Full Description":"The A Brand AT-1 threadmill is designed with a left-hand helix for a small pitch diameter difference between the hole entry and the bottom of the hole, allowing a delay in gauge-out failure. Longer tool life can be achieved with elimination of “zero cutting” for correcting bending.","Product Category":"Thread Mills","Feature 4":"Ultra-Fine Grain Carbide","Feature 1":"Unequal Spacing / Variable Lead Flute","Diameter-Sizes":"0.223\" - 0.737\"","Flute-Sizes":"-","Neck-Sizes":"0.48\" - 0.72\"","Taper-Sizes":"-","Overall-Sizes":"3\" - 4\"","Shank-Sizes":"0.25\" - 0.75\"","Friendly Name":"16631","CategoryBrand":"A Brand"}