TCI Tricone Bits

TCI Tricone Bit Product Scope

TCI identifies the tungsten carbide insert cutter type used in this product range. MSD TCI tricone bits are rotary drilling products supplied in multiple diameter, IADC, connection, and operating-parameter configurations.

This page is limited to TCI configurations. Steel Tooth products use a different cutter type and are covered on the dedicated Steel Tooth Tricone Bits page. Cutter type should therefore be confirmed before comparing individual sizes or operating data.

Selecting Bit Size, IADC and Formation Requirements

Begin selection with the required hole diameter, then review the relevant GHJ, GY, F / FC, FL, or KX series. Use the Model Specifications table to identify the full model, IADC code, listed bit size, Connection / API Pin, and Approx. Weight. The GY section on this page includes insert tricone models only.

The IADC code should be reviewed together with the available formation information rather than treated as a size reference alone. Customers should provide the formation description and any existing bit code or drilling records so that the required TCI configuration can be checked.

The Model Specifications and Recommended Drilling Parameters tables are separate references and are not necessarily a one-to-one model mapping. Check the applicable series and Bit Type / IADC before using the formation, Drilling Weight, and Rotary Speed entries. Confirm the Drilling Weight unit and load basis, especially for KX, before setting rig WOB; do not transfer values between series or from the former WOB table.

Connection / API Pin and Rotary Drill-String Matching

The Connection / API Pin entry shown for the selected TCI tricone drill bit must match the mating connection in the rotary drill string. Bit size alone does not confirm connection compatibility, and different entries may use different connection sizes. Entries marked "No stds" require separate connection confirmation rather than an assumed standard API match.

For an existing drilling system, provide the mating connection, drill-string information, current bit markings, and available photographs or drawings. If a bearing or seal configuration is required, state that requirement separately because the current parameter table does not identify a bearing or seal type.

Water Well, Mining, Blasthole and Oil-Well Applications

MSD TCI tricone bits can be reviewed for water well, mining, and blasthole rotary drilling requirements. Application type alone does not determine the final bit: the required diameter, formation information, IADC code, API pin connection, drill rig, and operating conditions must be considered together.

KX is the mining tricone series and provides the relevant starting point for mining and blasthole selection. Oil-well drilling requirements should be reviewed against the applicable GHJ, GY insert, F / FC, or FL configuration. These are application directions within the TCI range, not separate product categories.

The series-specific Recommended Drilling Parameters tables provide formation, drilling-weight, and rotary-speed references. Technical confirmation should use the selected series and model, rig capability, and actual circulation system. Air-supply or drilling-fluid requirements need separate confirmation; the new tables do not provide pressure ratings.

Technical Confirmation and Quotation Information

For technical confirmation or quotation, provide the required series and full model if known, bit size, formation description, preferred or existing IADC code, Connection / API Pin, drill-rig and drill-string information, available WOB and RPM, circulation-system details, drilling application, and required quantity.

For replacement requirements, also provide the current bit markings, photographs, drawings, or previous order information where available. MSD can review the supplied information and confirm an available TCI tricone bit configuration before quotation.

Technical content reviewed by MSD Engineering Team. | MSD — 23+ years of rock drilling tools manufacturing expertise | ISO 9001 Certified | Exporting to 40+ countries