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If you’re losing too much time on trips replacing worn bits in medium to hard rock, the issue is usually the structure and seal integrity. We’ve seen it happen — a bit that looks fine on the surface but can’t hold gauge past 50 hours or so in abrasive formations.
This one is a 165mm TCI tricone with 3 1/2" API REG thread, weighing 21kg, and the bearing can be open or sealed — rubber or metal seal depending on your preference. The inserts are tungsten carbide, with chisel shapes on heel and inner rows for faster penetration in medium rock, and hemispherical inserts on outer rows for gauge retention in hard, abrasive ground. HSN rubber O-rings handle sealing, and the hydraulics are optimized for efficient cuttings removal — basically, less regrinding and faster ROP.
What it does is give you a wear-resistant structure that holds up in formations form medium to hard, and the sealed bearing option extends life in water well or geothermal application where you can’t afford a washout. One thing most buyers don’t think to ask: the 3 1/2" API REG connection is standerd, but confirm your pin taper — we’ve had a few mismatches with older rigs.
We usually keep stock on teh 165mm size, but customization is avaliable if you need a different thread or insert configuration — lead time is roughly 20 days or so for non-standard orders. It’s not suited for very soft formations like clay or sand, where a PDC bit would outperform it anyway.
The weight is 21kg, which makes it manageable for one person to handle, but the box dimensions are about 400mm cube — check your transport limits if ordering multiples. COA and SGS certification are included with each bit, and we typically ship within 5-7 business days for standard models.
You can choose between open, sealed rubber, or sealed metal bearings. Open bearings are good for low-cost applications, while sealed rubber or metal bearings extend bit life in harder formations by keeping debris out and lubricant in.
Yes, the 3 1/2" API REG thread is a standard rotary connection that fits most conventional drill strings used in oil, water, and geothermal drilling.
Each bit is API and SGS certified, so you get documentation proving compliance with industry standards for materials and manufacturing.
Absolutely, we offer customization on insert grade, nozzle size, and seal type to match your medium to hard rock drilling requirements.
Lead time is usually 15-20 working days depending on order volume. MOQ starts at 5 pieces for standard specs, but we can discuss lower quantities for custom orders.
Hats off to the entire team for a truly seamless experience from start to finish. The delivery was remarkably prompt, arriving well ahead of the estimated schedule, which was a pleasant surprise and greatly appreciated. The packaging was exceptionally secure and professional, ensuring the product arrived in pristine condition without a single scratch or dent. Regarding the item itself, the build quality is immediately apparent; it feels robust, well-engineered, and precisely manufactured. The materials used seem top-notch, giving full confidence in its durability for demanding applications. Customer service was equally impressive, with clear communication at every step and prompt, helpful responses to my pre-shipment inquiry. Overall, this was a flawless transaction combining excellent logistics, superior product quality, and outstanding service. Highly recommended for anyone seeking reliability and professionalism.
Prompt delivery and excellent packaging. The bit arrived ahead of schedule, which was a fantastic surprise. The shipping was handled very professionally, with clear tracking updates provided throughout the process. The item was securely packaged, preventing any potential damage during transit. This level of care in logistics is highly commendable and sets a positive tone for the entire purchasing experience. The overall service from order placement to delivery was seamless and efficient. Communication was clear, and any inquiries were addressed promptly. The quality of the product, as far as initial inspection goes, appears robust and well-manufactured, meeting the described specifications. The supplier demonstrated a strong commitment to customer satisfaction through reliable service and attention to detail in handling the shipment. This efficient and professional approach in logistics and service inspires confidence in future transactions. It is refreshing to deal with a vendor who prioritizes such aspects, ensuring a smooth and hassle-free experience for the customer. The entire process reflected a high standard of operational excellence.
Zippy delivery! The shipping was incredibly fast and well-handled, with the package arriving securely without any delays. Regarding quality, the bit appears robust and well-manufactured, showing no visible defects upon inspection. Customer service was responsive and helpful when I had a query, providing clear and timely assistance. Overall, a smooth experience from start to finish.
Zippy delivery made this a standout experience; the package arrived ahead of schedule, which was a pleasant surprise. Zooming in on quality, the bit appears robust and well-crafted, with no visible defects, giving me confidence in its durability. Zestful customer service was evident from the start, as the team responded promptly to my inquiries and provided clear updates. Zero complaints overall—this combination of fast logistics, solid construction, and attentive support makes it a reliable choice for industrial needs.
Prompt delivery and excellent packaging ensured the product arrived safely without any delays. The quality appears robust and well-manufactured, meeting my expectations for durability. Customer service was responsive and helpful throughout the ordering process, making the experience smooth and satisfactory.
