A 
                内径范围 (标准钻头尺寸)  | 
              B 
                主体外径  | 
              C 
                长度 
                (头下)  | 
              ANSI标识 
                型号 H  | 
              价格 
                代码** | 
              F & G 
                沉头 
                尺寸  | 
            
            
              小数尺寸  | 
              件号,字母, 
                以分数表示的尺寸+  | 
              公称尺寸  | 
              磨前尺寸  | 
              磨后尺寸*  | 
            
            
              磨后尺寸  | 
            
            
  
              .3125 
                to 
                .4375  | 
              “O” to “Z” 
                5/16 to 7/16  | 
              5/8  | 
              .6267 
                .6264  | 
              1/4 
                5/16 
                3/8 
                1/2 
                5/8 
                3/4 
                1 
                1-3/8 
                1-3/4 
                2-1/8  | 
              H-40-4 
                H-40-5 
                H-40-6 
                H-40-8 
                H-40-10 
                H-40-12 
                H-40-16 
                H-40-22 
                H-40-28 
                H-40-34  | 
              124 
                118 
                120 
                120 
                123 
                126 
                128 
                147 
                158 
                172  | 
              F  
                51/64 
                                  G  
                  7/32  | 
            
  
              .3125 
                to 
                .5312  | 
              “O” to “Z” 
                5/16 to 17/32  | 
              3/4  | 
              .7518 
                .7515  | 
              1/4 
                3/8 
                1/2 
                5/8 
                3/4 
                1 
                1-1/4 
                1-3/8 
                1-3/4 
                2-1/8 
                2-1/2  | 
              H-48-4 
                H-48-6 
                H-48-8 
                H-48-10 
                H-48-12 
                H-48-16 
                H-48-20 
                H-48-22 
                H-48-28 
                H-48-34 
                H-48-40  | 
              128 
                124 
                124 
                126 
                128 
                132 
                148 
                148 
                159 
                173 
                270  | 
              F 
                59/64 
                 G 
                  7/32  | 
            
  
              .5000 
                to 
                .6562  | 
              1/2 to 21/32  | 
              7/8  | 
              .8768 
                .8765  | 
              3/8 
                1/2 
                5/8 
                3/4 
                1 
                1-1/4 
                1-3/8 
                1-1/2 
                1-3/4 
                2-1/8 
                2-1/2  | 
              H-56-6 
                H-56-8 
                H-56-10 
                H-56-12 
                H-56-16 
                H-56-20 
                H-56-22 
                H-56-24 
                H-56-28 
                H-56-34 
                H-56-40  | 
              133 
                133 
                134 
                134 
                140 
                145 
                146 
                155 
                159 
                174 
                270  | 
              F 
                1-7/64 
                 G  
                  1/4  | 
            
  
              .5000 
                to 
                .7656  | 
              1/2 to 49/64  | 
              1  | 
              1.0018 
                1.0015  | 
              1/2 
                3/4 
                1 
                1-3/8 
                1-1/2 
                1-3/4 
                2-1/8 
                2-1/2 
                3  | 
              H-64-8 
                H-64-12 
                H-64-16 
                H-64-22 
                H-64-24 
                H-64-28 
                H-64-34 
                H-64-40 
                H-64-48  | 
              136 
                137 
                141 
                147 
                165 
                170 
                188 
                205 
                277  | 
              F 
                1-15/64 
                 G  
                  5/16  | 
            
            
          
          + 内径尺寸以分数表示, 为1/64英寸的倍数 (除非另有指明).