17 1/2 6 blades steel body PDC bit for bore drilling
size:17 1/2"(444.5mm) body type:steel body primary cutter size: 16mm number of nozzle : 9 number of blade:6 Gauge length:3" connection :7 5/8" API Reg application:waterwell,oilwell,HDD,exploration,etc weight:280kg certificate: API7-1,SY/T5164,ISO9001:2008 Recommend rock formation: medium to medium hard formations with higher compressive strength and good drillability,such as mudstone,limestone,anhydrite,calcareous sandstone,etc.
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