Blue Diamond Tong Die 1/2″ x 1-1/4″ x 5-7/8″ | BJ Type B & DB
The 1/2″ x 1-1/4″ x 5-7/8″ Blue Diamond Tong Die is an extended-length, high-performance insert designed for maximum surface engagement. Featuring a unique multi-directional diamond tooth pattern, it provides a superior “bite” that prevents both rotational and vertical slippage. Optimized for BJ Type B and DB manual tongs, this die is the preferred choice for high-torque drilling and casing operations.
Description
Comprehensive Technical Data
Multi-Directional Grip Engineering
The Blue Diamond profile is specifically engineered to solve the issue of “tong walk” or slippage during high-torque make-up and break-out:
Omni-Directional Teeth: Small, sharp diamond pyramids engage the tubular surface from all angles, ensuring stability even under lateral or vertical loads.
Extended Length (5-7/8″): Provides a larger contact area compared to standard 5″ dies, distributing torque forces more evenly and protecting the pipe from localized stress.
Superior Hardness: Precision case-hardened to 58-62 HRC, ensuring the teeth maintain their aggressive biting edge in the harshest drilling environments.
Technical Specifications Table
| Property | Specification |
| Dimensions (T x W x L) | 1/2″ x 1-1/4″ x 5-7/8″ |
| Tooth Style | Blue Diamond (Pyramid Pattern) |
| Weight per Die | 0.381 Kg (0.84 lbs) |
| Material Grade | Forged 8620 Alloy Steel |
| Hardness (Surface) | 58-62 HRC |
| Standard Compliance | API Spec 7K |
Industry Cross-Reference Part Numbers
This die is a precision-engineered, high-quality alternative for the following industry part numbers.
16402-6 | 55552-B | 16-02D | 1602D | 52-0171BD | 13-0008-514-D | 6419666 | 627-185-1578 | ON-16402-6
Equipment Compatibility
Manual Tongs: BJ Type B and DB (with 1-1/4″ slots).
Power Casing Tongs: Direct fit for BJ and Lamb hydraulic power tong systems.
Specialized Rig Tools: Optimized for Top Drive Torque Wrenches and Foley Manual Tongs.
Key Performance Advantages
Self-Cleaning Valleys: The diamond pattern naturally sheds drilling mud and debris, maintaining a constant coefficient of friction.
High-Impact Durability: The specialized heat-treatment process creates a shock-absorbent core that prevents the die from cracking under the “snap” of hydraulic tongs.
Corrosion Protected: Every die is treated with a protective coating to withstand offshore salt-spray and humid land-rig conditions.
Total Traceability: Every batch is code-marked for material and heat-treatment verification to meet global HSE standards.
Why Pan Oil Tools?
Pan Industries is a globally recognized manufacturer of API 7K Handling Tools. Our 5-7/8″ Blue Diamond series is the top-tier choice for drilling contractors who prioritize rig floor safety and tool longevity. We maintain a heavy stock of these premium dies to ensure zero-downtime shipping to active rig sites worldwide.
Compatibility Disclaimer
Manufacturer names (BJ, Lamb, Foley, NOV) and reference part numbers are used strictly for identification and cross-reference purposes. Pan Industries is an independent manufacturer and is not affiliated with, endorsed by, or licensed by these original equipment manufacturers (OEMs).
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