4-1/2″ x 4″ Slip Insert for Varco Style Slips | Part 20164
The 4-1/2″ x 4″ Slip Insert (Pan P/N: 20164) is a heavy-duty reduction insert engineered to adapt 4-1/2″ rotary slips for the secure handling of 4″ OD drill pipe and tubing. Optimized for Varco Style RSST (Short), RSMD (Medium), and RSLG (Long Grip) slips, these inserts are manufactured from high-tensile forged alloy steel. Every batch is heat-treated to API 7K standards, providing the aggressive mechanical grip required for modern drilling and the vertical support needed for heavy drill strings.
Description
Comprehensive Technical Data
Precision Reduction Engineering
Adapting a 4-1/2″ slip body to a 4″ pipe requires a robust 3/4″ thick insert profile. Our engineering ensures these inserts maintain structural stability under load:
Anti-Bottlenecking Tooth Profile: The precision-machined “bite” is calibrated to distribute radial clamping forces evenly, preventing “crushing” or stress risers on the 4″ drill pipe wall.
Superior Metallurgy: CNC-machined from forged 8620 alloy steel, offering superior grain structure and impact resistance compared to standard cast alternatives.
Controlled Case-Hardening: Surface hardened to 58-62 HRC. This provides a rock-hard gripping surface while the core remains ductile enough to absorb the intense “shock loads” of setting the slips under heavy strings.
Technical Specifications Table
| Property | Specification |
| Slip Size (Body) | 4-1/2″ |
| Pipe/Tubing OD Compatibility | 4″ |
| Dimensions (Approx.) | 2-3/4″ x 1-1/4″ x 3/4″ |
| Pan Part Number | 20164 |
| Full Set (RSST) | 36 Pieces (P/N: 20164-36) |
| Full Set (RSMD) | 45 Pieces (P/N: 20164-45) |
| Full Set (RSLG) | 54 Pieces (P/N: 20164-54) |
| Material Grade | Case-Hardened Forged Alloy Steel |
| Standard Compliance | API Spec 7K |
Industry Cross-Reference Part Numbers
This insert is a high-performance alternative for the following industry part numbers:
2164 | ON-2164 | 21-64 | 10164 | 1454 | 80114 | 6421644 | 23-159 | 36-2164
Equipment Compatibility
Varco Style Slips: Optimized for RSST (Short), RSMD (Medium), and RSLG (Long Grip).
Drilling Slips: Compatible with SDS, SDML, and SDXL slip bodies utilizing 3/4″ thickness reduction inserts.
Global Interchangeability: Fits most major brand 4-1/2″ slips requiring 2-3/4″ length inserts.
Key Performance Advantages
Optimized Grip Consistency: Engineered to penetrate through pipe scale and heavy drilling fluids for a secure mechanical hold.
Precision Seating: Machined to exact tolerances to prevent “insert roll” or vibration within the slip body during rotation.
Extended Wear Life: Superior heat-treatment prevents teeth from “rounding off” under high-frequency use.
Corrosion Protection: Finished with a protective industrial coating to withstand offshore salt spray and high-humidity land rig conditions.
Why Pan Oil Tools? (SEO Content)
Pan Industries specializes in API 7K Handling Tool Spares that drilling contractors trust for safety and reliability. Our 4-1/2″ x 4″ inserts are manufactured to withstand the extreme pressures of modern deep-hole drilling. Every set is batch-tested and shipped with full material traceability (MTC) to meet global quality requirements.
Compatibility Disclaimer
Manufacturer names (Varco, NOV, Baash-Ross), equipment brands, and reference part numbers are utilized strictly for identification purposes. Pan Industries is an independent manufacturer and is not affiliated with, endorsed by, or licensed by any original equipment manufacturers (OEMs). Our products are high-quality, compatible replacements designed to perform in OEM equipment.
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