The Lincoln Electric Precision TIG® 275 and 375 welders deliver a powerful combination of precision, control, and versatility for professional fabrication, production, and maintenance applications. Designed for both thin materials and heavy-duty welding, these AC/DC TIG machines provide exceptional arc stability and performance across a wide range of projects.
Whether you choose the Precision TIG® 275 for general shop use or the higher-output Precision TIG® 375 for thicker materials and demanding jobs, both machines feature advanced technologies like Micro-Start™ II and AC Auto Balance® to ensure consistent, high-quality welds. :contentReference[oaicite:0]{index=0}
- AC welding for aluminum and DC welding for steel and stainless
- Ideal for fabrication, aerospace, motorsports, and production
- Handles both thin materials and heavy-duty applications
- Delivers smooth, stable arc starts at low amperages
- Improves arc stability throughout the weld
- Provides precise crater fill for cleaner finishes
- Automatically adjusts cleaning vs. penetration
- Produces consistent aluminum welds with minimal setup
- Manual override allows full control when needed
- Precision TIG® 275: 2–340 amps
- Precision TIG® 375: 2–420 amps
- Weld everything from thin sheet metal to thicker materials
- Standard on Precision TIG® 375, optional on 275
- Reduces heat input to minimize warping and burn-through
- Improves bead appearance and consistency
- Supports Stick (SMAW) welding for added versatility
- Handles electrodes up to 5/32 in. (4.0 mm)
- Great for maintenance and repair work
- Side-mounted torch holder for organized cable management
- Simple, intuitive controls for quick setup
- Durable design for long-term reliability
- Up to 275 amps output
- Ideal for general fabrication and shop use
- Optional pulse control
- Up to 375 amps output with higher duty cycle
- Better suited for thicker materials and heavy-duty applications
- Built-in TIG pulse control standard
- Include water cooler, TIG torch, and Foot Amptrol™
- Regulator/flowmeter and work cable included
- Shipped fully assembled for fast setup
- Fabrication and production welding
- Aerospace and precision TIG work
- Motorsports and custom fabrication
- Maintenance and repair operations
The Precision TIG® 275 and 375 offer a perfect balance of control, power, and flexibility. With advanced arc technology, wide output ranges, and optional or built-in pulse control, these machines are built to handle everything from delicate TIG work to heavy-duty fabrication with confidence.





