Import Drill Bit — Buy in Bulk from Supplier in China

The H series drill bit offered by Hejian Fist Petroleum Equipmentc O., Ltd is sized at 215.9 mm (8.5 inches) and designed for O‑type rubber sealing sliding bearing applications. Its cutting structure incorporates a high‑strength, high‑toughness cemented‑carbide gear that enhances shock resistance and reduces tooth breakage. The bit features a gold‑plated die hole to improve welding integration and a high‑saturation acrylonitrile‑butadiene‑rubber sealing ring that maintains pressure balance. The design also tolerates temperatures up to 250 °C, extending service life under high‑heat drilling.

Cemented carbide is the industry standard for drill bits requiring superior hardness and wear resistance, typically achieving a Rockwell hardness of 90 HRC. The O‑type rubber seal used here aligns with common sealing practices in oil‑field drilling, where elastomers must resist aggressive drilling fluids. Typical drill bits of this class are supplied with a shank compatible with 1‑inch or 1‑½‑inch rotary tables, allowing integration into standard drilling rigs. Standard specifications also call for a surface finish on the gear of Ra ≤ 0.8 µm to ensure smooth cutting action.

This bit is suited for oil exploration rigs, geothermal drilling rigs, and any operation that demands reliable sealing under high pressure. Importers such as drilling contractors, equipment distributors, and OEM manufacturers often source this component in bulk for field deployment. The supplier lists the product under the drilling accessories category and can provide bulk packaging upon request. Specific minimum order quantities, lead times, and payment terms should be confirmed directly with Hejian Fist Petroleum Equipmentc O., Ltd.

Hejian Fist Petroleum Equipmentc O., Ltd is located in the North Hejian Industrial Zone, Cangzhou, China, postal code 062450. The company is classified under the harbour trust tier on the platform, indicating a verified business presence. Its public profile does not disclose a response rate, with a recorded response rate of 0.00 and no average response time available. The listing highlights the company's focus on drilling, exploration and oil‑field equipment.

The product entry emphasizes the H series drill bit with rubber sealing features and high‑temperature resistance. No additional corporate history, employee count, or client references are provided in the source data. The supplier offers the bit for routine use in high‑speed drilling where pressure control is critical. Interested buyers should request detailed engineering drawings and certification documents directly from the supplier.