Description
The Insert Bowl 6608 (No.3) is used with an MPCH master bushing for a 27-1/2-inch rotary table. It works together with rotary slips to support drill pipe, tubing, and casing ranging from 2-3/8 inches to 8-5/8 inches during drilling operations.
Insert bowls are used together with rotary slips and master bushings to securely hold drill pipes, tubing, and casing during drilling operations. These components are typically manufactured from high-strength alloy steel and must comply with API Spec 7K standards for drilling equipment.
Our factory produces a full range of API drilling handling tools, including master bushings, insert bowls, rotary slips, and other oilfield equipment components.
Technical Specifications of Insert Bowl 6608
| Item | Specification |
|---|---|
| Product Name | Insert Bowl No.3 |
| Model | 6608 |
| Application | MPCH Master Bushing |
| Rotary Table Size | 27-1/2 inch |
| Tubular OD Range | 2-3/8″ – 8-5/8″ |
| Material | High-strength alloy steel |
| Heat Treatment | Quenched and Tempered |
| Manufacturing Process | Steel casting + precision machining |
| Standard | API Spec 7K |
| Inspection | MPI / NDT inspection |
What Is Insert Bowl 6608 Used For?
Insert Bowl 6608 is used in rotary table drilling systems to support and position slips that hold drill pipe or casing during drilling operations.
Key functions include:
- Supporting rotary slips during pipe handling
- Preventing pipe slippage during drilling
- Ensuring proper alignment of the drill string
- Improving operational safety on drilling rigs
Insert bowls are widely used in oil and gas drilling rigs, both onshore and offshore. They are designed to withstand heavy loads and harsh drilling environments.
Insert Bowl No.3 (6608) is typically used for smaller tubular sizes up to 8-5/8″, while other models such as 6609 and 6610 are designed for larger casing sizes.
It is widely used in onshore and offshore drilling operations.
Insert Bowl 6608 Project for a Singapore Customer
This Insert Bowl 6608 No.3 was manufactured for a customer in Singapore. The customer required three rounds of Magnetic Particle Inspection (MPI) at different production stages.
The inspection requirements, acceptance criteria, and reporting were carried out according to the customer’s confirmed specification.
Quality Control and Inspection
The Insert Bowl 6608 supplied for the Singapore customer required three rounds of Magnetic Particle Inspection to check for surface and near-surface discontinuities during production.
The inspection stages and acceptance criteria were confirmed according to the customer’s technical requirements and the applicable drilling-tool specification.
The parts were delivered without final painting so that the customer could conduct an additional MPI inspection after receipt if required.
Below are the pictures.






Relevant Bushing and Insert Bowl for Master Bushing
We produce master bushings and insert bowls with sizes from 17 1/2 to 37 1/2 inches. It is made of high-quality alloy steel from the process of casting (foundry). All the sizes conform to API Spec 7K.
They are two types. One is one unit type (solid body), and another is a separate type(split body). It divides by the pin drive type and the square drive type.
The series bushings and insert bowls can be put into API standard rotary slip, drill collar slip, casting slip or roller Kelly bushing in use.
Bushing Type
We produce the bushings and the insert bowls for the bushing type:
- MISS solid body and split body
- MDSP split body
- MSPC solid body
- MSP split body
- MPCH

Insert Bowl Series We Manufacture
We manufacture a full range of insert bowls compatible with API master bushings:
- Insert Bowl 1011
- Insert Bowl 1024
- Insert Bowl 1022
- Insert Bowl 1025
- Insert Bowl 1026
- Insert Bowl 1810
- Insert Bowl 1902
- Insert Bowl 1903
- Insert Bowl 1904
- Insert Bowl 6608
- Insert Bowl 6609
- Insert Bowl 6610
These insert bowls are compatible with API standard rotary slips, drill collar slips, and casing slips.
This is the details.

Actually, we manufacture the whole range of the drilling tools for petro drilling rigs:




Custom Manufacturing for Oilfield Equipment
We provide custom manufacturing of oilfield handling tools, including:
- Master bushings
- Insert bowls
- Rotary slips
- Drilling tool components
For OEM oilfield projects involving cast steel drilling-tool components, precision-machined parts, heat treatment, NDT inspection, fasteners, surface finishing, and complete industrial assemblies, explore our custom industrial parts manufacturing capabilities.
Check more of our projects for Oil & Gas Equipment.
If you are looking for custom oilfield drilling components or insert bowls compatible with API master bushings, feel free to send us your drawings for quotation.
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