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Rotary dil bit IDC216 7 7/8 inch (200mm)
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Rotary bits soplaya IDC216 10 5/8 inch (269mm)
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Zụrụ ibe ngwupu IDC216 17.5 ″ (444.5mm)
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Ụlọ ọrụ cones ibe n'ibe atọ IDC217 3 7/8 sentimita (98mm)
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Tricone bits IDC217 4.5 sentimita (114mm) maka igwu mmiri miri emi nke ọma
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Ihe mkpuchi igwe mkpuchi API maka mkpọpu IDC217 5 7/8 inch (149.2mm)
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Rotary mkpọpu ihe IDC217 6 sentimita (152mm)
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Ezé egweri API atọ cones ibet IAC217 7.5 sentimita (190mm) na ngwaahịa
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API mmanụ nchara nha nha IDC217 8.5 sentimita (215mm) maka mkpọpu nkume
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API ibe n'ibe soplaya IDC217 8 3/4 inch (222.2mm)
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Ngwupu mmiri miri emi IDC217 11 5/8 inch (295.3mm) maka nkume siri ike
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API Mill eze iberi IDC217 12 1/4 inch (311mm) maka mkpọpu ala ọma jijiji