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Miller Bernard BTB MIG Gun , B Small Curved Handle, 300A, 15 ft. #Q3015AE8HMC

Part Number: Q3015AE8HMC
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Miller Bernard BTB MIG Gun , B Small Curved Handle, 300A, 15 ft., Medium 45° Rotatable Neck, Centerfire™, .052 in. #Q3015AE8HMC

Bernard has moved all of its best handles, necks, consumables, liners and cables into its new Bernard BTB (Best of the Best) MIG Guns. Enjoy industrial-grade performance and durability along with an industry-leading 1 year manufacturer’s warranty on these semi-automatic, air-cooled MIG guns.


One (1) Jump Liner - allows you to replace just the front portion of your conventional liner once it becomes worn.

Maximized Consumables Compatibility

Necks feature a dual lead thread that receives your choice of high performance Centerfire™, Quik Tip™ or TOUGH LOCK™ Consumables.

Neck Options for Improved Weld Accessibility

Available with fixed or rotatable aluminum armored necks in various lengths for optimal weld accessibility and operator comfort. Easily reposition rotatable necks without tools to reach awkward welds on the fly.

Rugged Industrial-Duty Cables

Available with tear resistant, burn resistant Industrial Grade Cable (standard) or the Steel Monocoil Cable which offers superior pinch resistance to ensure good gas flow and wire feeding. Flexible steel spring guard strain relief on front and back handles protects cable from wear by preventing kinking and abrasion and improves wire feedability.

Easy Maintenance

The guns are designed for quick and easy maintenance and repair.

Maximized Liner Compatibility

Compatible with both Bernard Universal Conventional Liners and time-saving, front-loading QUICK LOAD Liners

Connection Flexibility

Easily interchangeable power pins and trigger leads allow guns to be used on various wire feeders and machines.

See more Miller welding equipment and supplies.

Bernard BTB MIG Gun #Q3015AE8HMC Specifications

Title Bernard™ BTB MIG Gun , B Small Curved Handle, 300A, 15 ft., Medium 45° Rotatable Neck, Centerfire™, .052 in.
Processes Aluminum Welding
Flux Cored (FCAW
Pulsed MIG (GMAW-P)
Industries Interests Aerospace
Automotive Manufacturing
Boat / Yacht
Commercial Truck and Trailer
Cross Country Pipeline
Education / Training
Farm and Ranch
Heavy Equipment Manufacturing
Maintenance and Repair - Field Operations
Maintenance and Repair - In Plant
Metal Art / Sculptures
Pipe Fabrication / Construction
Work / Service Trucks
Amperage Rated Output 300
Cable Length 15 ft
Wire Size .052 in.
Warranty Miller's True Blue Warranty


Height: 3.00 Inches
Width: 14.00 Inches
Length: 19.00 Inches
Weight: 10 Lb(s) 0 Oz

Product Questions and Answers

How to Change Conventional Liner:

  1. Remove Tip.

    Remove nozzle, contact tip, and gas diffuser/retaining head and lay cable straight.

  2. Remove Liner.

    Using a 10mm wrench, turn liner lock counterclockwise until it is free from the power pin. Remove liner.

  3. Insert New Liner.

    With a straight cable, insert a new liner into the power pin and feed through the gun using short strokes to prevent kinks.

  4. Adjust and Tighten.

    Twist liner clockwise as needed to correct it. Tighten into power pin with a 10 mm wrench.

  5. Trim to Size.

    Trim to dimensions given by the owner’s manual and remove all burrs.

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