Import Diameter 28mm R Screw Type Pdc Drill Bit — Buy in wholesale FOB from Supplier in China

The Diameter 28mm R Screw Type Pdc Drill Bit is a polycrystalline diamond compact bit designed for drilling medium to super hard rock formations. It combines industrial diamond grit with tungsten carbide under high-pressure, high-temperature conditions to form a cutting surface that resists abrasion while maintaining structural integrity. The bit features a forged steel carrier treated with fully automatic vacuum heat treatment to enhance toughness and reduce deformation under load. The R-screw thread design ensures secure coupling with drill rods and efficient torque transfer during rotary drilling operations.

Two variants are offered: the standard type uses Chinese-made PDC cutters with typical diamond content for applications in rock hardness up to f8, while the super-strong variant incorporates GE-sourced American PDC blades with 1.5 times higher diamond density, suitable for formations up to f12. The super strengthened version employs a ball-type diamond design that improves impact resistance and reduces chipping. These bits do not require re-sharpening, unlike conventional alloy bits, which reduces downtime and labor costs. Typical service life is 10 to 30 times longer than standard alloy bits, with drilling efficiency gains of approximately 60%.

This drill bit is used in coal mining, oil and gas exploration, geological surveying, hydroelectric tunneling, and railway construction. Buyers include drilling contractors, mining operations, and geological survey teams operating in hard rock environments. Packaging is standard industrial carton with foam inserts to prevent damage during transit. Trade terms are typically FOB Qingdao or CIF, with lead times of 15 to 25 days after order confirmation. MOQ is not specified and must be confirmed directly with the supplier.

Shandong Yikuang Drilling Technology Co., Ltd. is a manufacturer based in Linqing, Shandong Province, China, specializing in drilling tools for mineral and energy exploration. The company operates a production facility with automated heat treatment equipment and focuses on PDC bit design for hard rock applications. The supplier’s trust tier is harbor, indicating verified business registration and basic compliance, but no certifications, export history, or client list are disclosed in the listing.

No information is provided regarding years in operation, workforce size, revenue, or international sales volume. The response rate is listed as 0.00%, and average response time is not recorded, suggesting limited buyer communication infrastructure. The product description is technical but does not include test reports, ISO certifications, or third-party quality audits. Buyers should request direct verification of material sources and cutting element origin before placing bulk orders.