Uniweld 70041 Swage Punch 1/4 Inch Od Tool

Product Description

The UNIWELD 70041 is a swage punch designed to expand the end of soft copper or aluminum tubing to accept a matching tube of the same outer diameter, creating a slip-fit joint ready for brazing or soldering. The 70041 is sized for 1/4 inch OD tubing, making it a standard tool in HVAC refrigeration line work and plumbing applications. HVAC technicians and plumbers reach for this tool when joining refrigerant lines, ACR tubing, or water supply lines without the need for a separate coupling fitting. The punch-style swaging method produces a clean, concentric bell that maintains tubing wall integrity when used with proper technique.

The UNIWELD 70041 is suited for residential and light commercial HVAC service work, refrigeration line sets, and copper plumbing repairs. It is most commonly used by HVAC technicians performing field repairs or system installations where a swaged joint reduces fitting count and potential leak points. The tool is also listed in supplier data under HVAC and plumbing tool classifications, confirming its cross-trade application.

Key Features

• Sized for 1/4 inch OD tubing — a common dimension in HVAC refrigerant line work
• Punch-style swage creates a bell end without a separate coupling fitting
• Compatible with soft copper and aluminum tubing used in ACR and plumbing systems
• Produces a slip-fit joint prepared for brazing or soldering
• Compact hand tool suited for field service and bench work

Compatibility

Designed as an OEM-style replacement or equivalent to Imperial part 93-S-04. Suitable for use with 1/4 inch OD soft copper and aluminum tubing in HVAC, refrigeration, and plumbing applications.

Installation Notes

This tool is typically used by licensed HVAC technicians and plumbers. Before swaging, ensure the tubing end is cut square and deburred to prevent cracking during expansion. When working on live refrigerant systems, recover refrigerant and depressurize all lines before cutting or swaging tubing in accordance with EPA Section 608 requirements. Swaged joints intended for refrigerant service should be brazed using appropriate filler alloy per system manufacturer specifications and local mechanical code requirements.

Technical Specifications

• Tubing OD Size: 1/4 inch
• Tool Type: Swage Punch
• Application: HVAC, Refrigeration, Plumbing
• Compatible Tubing Material: Soft Copper, Aluminum

Standard Information

• Brand: UNIWELD
• Manufacturer Part Number: 70041