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The ITW / Miller / Bernard 405-45 (including 405-45QC and 405-45QCL variants) is an industrial gooseneck conductor tube designed for Bernard BTB and S-Gun Series air-cooled MIG guns. It serves as the component determining torch reach, angle, and heat dissipation in heavy-duty fabrication environments.
Features
Quick-change (QC) design for tool-less rotation and replacement
Dual-thread front end compatible with AccuLock S, Centerfire, and TOUGH LOCK consumables
Aluminum armoring for impact resistance and thermal conductivity
High-temperature internal dielectric insulation to prevent short-circuiting
Polished or brushed aluminum finish to reduce weld spatter adhesion
Aluminum armor acts as a heat sink to extend component and consumable life
Compatible with Bernard BTB MIG Guns and Miller-branded MIG equipment
Specifications
Part Number: 405-45 (Short), 405-45QCL (Medium)
Angle: 45 Degrees
Neck Length (Short): 3" – 4" effective reach
Neck Length (Medium): Specified for QCL variant
Cooling Method: Air-Cooled (ambient air and shielding gas flow)
Rated Amperage (100% Duty Cycle): 300A with 100% CO2 gas
Rated Amperage (60% Duty Cycle): 400A with Mixed Gas
Wire Size Compatibility: 0.030" (0.8 mm) to 5/64" (2.0 mm)
