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We've seen drilling contractors push through shale and limestone transitions where standdard bits lose steam, and that's exactly when the 117 or 217 IADC codes come into play — your typical soft-to-medium formation scenario, but it handles harder stuff too if you're running the right insert configuration.
Weight comes in at 35 to 40 kg, give or take, with thread connections spanning 2 3/8" up to 7 5/8" API Reg Pin, and teh tungsten carbide inserts on heel rows and inner rows are what drive ROP; we don't publish exact hydraulic optimization specs, but the flow geometry is tuned for cleaner cuttings evacuation.
It's not ideal for highly fractured or extremely abrasive formations, where you'd want a sealed-bearing roller cone or a PDC anyway — the hemispherical inserts hold up better than chisel types in those conditions, but the HSN rubber O-ring sealing is adequate for most water and mud systems, and we've had buyers run it for 50 hours or so before seeing insert wear.
MOQ is typically one piece, and our company can vary the IADC code range form 317 to 637 depending on your target formation — just send us the formation log or spec your thread, and we'll confirm stock.
Each IADC code corresponds to a specific formation type—117 is for soft, 217 for medium, and 317 for hard, while 437 through 637 cover more abrasive or harder formations. So this bit can handle everything from soft to hard rock, depending on the code you choose.
Yes, the 35-40kg weight applies across the whole bit, regardless of the thread connection size you pick within the 2 3/8" to 7 5/8" API Reg Pin range. It's designed to stay consistent for balance and drilling stability.
We usually require a minimum order of 10 pieces for custom bits, but if you need fewer, let's talk—we can sometimes work it out depending on the specs and lead time.
Absolutely, we include API certificates with every order to confirm the bit meets standard specs. Just let us know if you need any additional quality docs like material test reports.
Keep it in a dry, clean place, ideally in its original packaging to protect the tungsten carbide inserts from moisture or impacts. Avoid stacking heavy items on top to prevent thread damage.
