1300340 - Harris Model 73-3 Heavy Duty Cutting Attachment for 43-2 Handles

Harris Model 73-3 Cutting Attachment: Precision and Durability

The Harris Model 73-3 Cutting Attachment represents a pinnacle in oxy-fuel cutting technology, designed specifically to fit the Harris 43-2 torch handle. This heavy-duty attachment is engineered for professionals who demand reliability, safety, and precision in their metalworking operations. One of the most striking features of the Model 73-3 is its construction; it utilizes brazed triangular stainless steel tubes. This innovative design choice is not merely aesthetic—it provides exceptional strength and rigidity while keeping the overall weight of the tool low. This balance is crucial for operators working long shifts, as it reduces hand fatigue without compromising the tool's structural integrity.

Safety and longevity are at the core of the Harris 73-3 design. The attachment features a solid forged brass head that resists distortion from intense heat and physical abuse, ensuring years of dependable service. Furthermore, the torch union nut is protected to shield the critical seating surfaces and O-rings from damage during transport or rough handling. The unit is UL® listed and incorporates an E-equal or positive pressure mixing system, which is highly effective at resisting flashback, a critical safety feature for any oxy-fuel operation.

Operational control is enhanced through the inclusion of an "ease-on" cutting valve. Unlike standard valves that may release a sudden burst of oxygen, this feature allows for a gradual increase in flow, resulting in smoother starts and cleaner piercing. The fold-forward brass cutting lever is ergonomically designed to be easily engaged even when wearing heavy welding gloves, providing convenience and ease of operation. Whether you are using acetylene, propane, or other fuel gases, the Model 73-3 adapts seamlessly, offering a cutting capacity of up to 6 inches.

Key Features for Industrial Use

• Triangular Tube Design: Stainless steel construction offers superior strength-to-weight ratio.


• Universal Fuel Compatibility: Safe for use with all fuel gases when paired with appropriate tips.


• Precision Control: Ease-on valve technology for controlled piercing and starts.


• Rugged Durability: Forged brass head and protected union nut for harsh environments.