? ? ? ? ? ? ? ? ? ?pdc drag bit,steel tooth 3 blads drag bit , 3 blades PDC bit 1?Company?information: ? Corider,?with?advanced?lathe?equipment?and?CNC?machining?center?,?has?its?own?experienced?technical?experts,?mainly?produce?tricone?bits?and?PDC?,?and?also?HDD?hole?openers.?With?large?stock,??fast?delivery?can?be?made?any?time?as?your?requirement. ? 2?Product?Specifications?&?Photos 1> 4 1/4" PDC drag bits 2> with?2 3/8 API?reg?pin 3>?suitable?for?soft?to?medium?hard?sandstone?and?shale 4>?meet?with?API?standard 5>?with?ISO?certificate ? ? ? ? ? 3?Advantages: 1>?with?lowest?price?among?the?drilling?bits 2>?with?short?delivery?time 3>?your?wise?choice?especially?drilling?in?soft?formations. ? Packaging & Shipping ?? Our Services ? ?