HMB Master Bushing 37.1/2″

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Petrorio Drilling Tools

Petrorio Drilling Tools manufactures the Hinged Type Pin Drive HMB Master Bushing, built for National 37.1/2” – 49.1/2” rotary tables in drilling operations. Designed in accordance with API-7K specifications, these master bushings deliver durability, precision, and dependable performance in the most demanding oilfield environments.

The HMB Master Bushing incorporates a latch-type design that locks securely into the rotary table, ensuring stability and safe operation. It is designed to accommodate Insert Bowls No. 1, 2, and 3, making it suitable for handling a wide range of tubulars such as drill collars, tubing, and casing from 2.3/8” to 13.3/8”. This versatility allows operators to achieve efficient and reliable tubular handling during drilling.

For enhanced safety, the bushing is equipped with an integrated locking mechanism for insert bowls. NOV equivalent options are also available for compatibility with various rotary table systems. With its robust construction and proven reliability, the Petrorio Drilling Tools HMB Master Bushing ensures long service life and consistent performance in global drilling operations.

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Part Number & Sizes of HMB Master Bushing 37.1/2"

S. No.	Description	ABI Part No.	Ref NOV Part No.
1	Master Bushing Hinged Type Pin Drive 37.1/2" Bare Body (Latch Type) suitable for National Rotary Table.	3710	6601-1
2	Insert Bowl No. 1 for 11.3/4"-13.3/8" tubular for National Rotary Table	3751	6610
3	Insert Bowl No. 2 for 9.5/8"-10.3/4" tubular for National Rotary Table	3752	6609
4	Insert Bowl No. 3 for 2.3/8"-8.5/8" tubular for National Rotary Table	3753	6608
5	Lifting Sling for Bowls (Two Hook Hype)	3754	1021
6	Lifting Sling for Master Bushing (Four Hook Type)	3716	6699
7	Bit Breaker Adapter Plate	3717	1816