Image not available 17 1/2”(444.5mm) IADC 517 Insert tooth Tricone Dirll Bits oilfield drilling bit HEJIAN YINRUH DRILL BIT MANUFACTURE CO., LTD. www.yhrockdrill.com
Image not available 15 1/2”(393.7mm) IADC 517 Insert tooth Tricone Dirll Bits oilfield drilling bit HEJIAN YINRUH DRILL BIT MANUFACTURE CO., LTD. www.yhrockdrill.com
Image not available 14 3/4”(374.65mm) IADC 517 Insert tooth Tricone Dirll Bits oilfield drilling bit HEJIAN YINRUH DRILL BIT MANUFACTURE CO., LTD. www.yhrockdrill.com
Image not available 13 5/8”(346mm) IADC：517 Insert tooth Tricone Dirll Bits oilfield drilling bit HEJIAN YINRUH DRILL BIT MANUFACTURE CO., LTD. www.yhrockdrill.com
Image not available 10 5/8”(269.88mm) IADC：517 Insert tooth Tricone Dirll Bits oilfield drilling bit HEJIAN YINRUH DRILL BIT MANUFACTURE CO., LTD. www.yhrockdrill.com
Image not available 9 7/8”(250.83mm) IADC:517 Insert tooth Tricone Dirll Bits oilfield drilling bit HEJIAN YINRUH DRILL BIT MANUFACTURE CO., LTD. www.yhrockdrill.com
