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                | Mining geological exploiting tools--->> 
                  Oil 
                  Drilling Tips HCZ-1 (Spherical Tapered Button) |   
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                | Unit£ºmm |   
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                      | Type | Dimension  |   
                      | D | H | h | R | R1 | ¦Â | e |   
                      | HCZ0812-1 | 8.0 | 12.0 | 4.5 | 10.4 | 3.5 | 65¡ã | 1.5 |   
                      | HCZ1016-1 | 10.0 | 16.0 | 5.0 | 11.5 | 4.0 | 2.0 |   
                      | HCZ1422-1 | 14.0 | 22.5 | 8.0 | 22.0 | 5.0 | 45¡ã | 1.0 |   
                      | HCZ1621-1 | 16.0 | 21.0 | 16.0 | 18¡ã | 1.8 |   
                      | HCZ1622-1 | 22.0 | 10.0 |   
                      | HCZ1626-1 | 26.5 | 9.5 | 25.0 | 5.7 | 45¡ã | 1.0 |   
                      | HCZ1820-1 | 18.0 | 20.5 | 10.5 | 28.0 | 6.5 | 1.0 |   
                      | HCZ1825-1 | 25.0 | 10.0 | 18¡ã | 1.4 |   
                      | HCZ1831-1 | 31.5 | 10.5 | 45¡ã | 1.0 |  |    |  |  |