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Smith Toughcut Medium-Duty Acetylene Outfit CGA 300

$843.41/ea $554.29/1 per ea only $554.29/eaSave 34%

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OVERVIEW

Miller Smith Toughcut MB55A-300: The Versatile Workhorse

For farmers, ranchers, automotive enthusiasts, and light fabricators, the Miller Smith Toughcut MB55A-300 Acetylene Outfit is the ultimate all-in-one solution. This medium-duty kit brings the premium quality of Smith Equipment (now under the Miller brand) to a package that is accessible and ready for action. Whether you are repairing broken farm machinery, fabricating a custom bracket, or heating stubborn bolts, the Toughcut outfit delivers professional results with ease.

Why Choose the Toughcut?
Many medium-duty outfits cut corners on component quality, but the MB55A-300 includes features typically reserved for heavy-duty, expensive industrial rigs. The torch handle and cutting attachment are nickel-plated to deflect heat and resist corrosion, ensuring your tools look and work like new for years. The "Ease-on" oxygen cutting valve allows for smooth, controlled starts, eliminating the messy, explosive piercing often associated with cheaper torches. This precision makes it ideal for detailed work where clean cuts are essential.

Complete Ready-to-Weld Package
This outfit comes fully loaded with everything you need to get started (tanks sold separately). It includes a genuine Smith WH100 handle, CC509P cutting attachment, and a set of Series 30 regulators known for their accuracy. You also get a cutting tip, welding tip, and a specialized heating tip, along with 20 feet of twin hose, safety glasses, and a lighter. The CGA 300 regulator fits standard commercial acetylene tanks with female valves, ensuring compatibility with common industrial gas supplies.

Built for the Long Haul
Smith's exclusive "Slip-in" tips with Graf-Tite soft seats mean you spend less time wrenching and more time working. The soft seats seal perfectly every time, even if the torch head has minor wear, preventing dangerous leaks. Backed by Miller's True Blue 3-Year Warranty, the MB55A-300 is an investment in your shop's capability that pays for itself through reliability and performance. From light fabrication to automotive repair, this is the outfit that handles it all.

Additional Information
Brand:Smith Equipment
Fuel Gas:Acetylene
Item:Cutting Outfit
Packaging Description:pack-of-1
Torch Series:Cuts up to 6"
Cutting Capacity:6 in (with Optional Tips), 5/8 in (Included Tip)
Welding Capacity:1/8 inch (3mm) with included tip, Up to 1/2 inch with optional tips
Gas Connection:CGA 300 (Acetylene), CGA 540 (Oxygen)
Torch Handle Model:WH100
Cutting Attachment Model:CC509P
Regulator Series:Series 30 Medium-Duty
Hose Length:20 ft
Warranty:3 Years True Blue Warranty

INCLUDED

  • Torch Handle (WH100)
  • Cutting Attachment (CC509P)
  • Oxygen Regulator (30-100-540)
  • Acetylene Regulator (30-15-300) - CGA 300 Connection
  • Cutting Tip (MC12-1)
  • Welding Tip (MW205)
  • Heating Tip (MT603)
  • 20-ft 3/16" Twin Hose (RL935)
  • Friction Lighter (16571)
  • Safety Glasses (78000)
  • Regulator Mount Check Valves (H698)
  • Operations Manual

APPLICATIONS

  • Farm and Ranch Maintenance
  • Automotive Repair and Restoration
  • Light Fabrication
  • Hobbyist Metalworking
  • Refrigeration and HVAC
  • General Maintenance and Repair (MRO)
  • Metal Sculpture

FAQ

CGA 300 is designed for commercial acetylene cylinders with a female valve connection (you screw the regulator into the tank). CGA 510 is for acetylene cylinders with a male valve connection (you screw the nut onto the tank). This outfit (MB55A-300) is for CGA 300 tanks.

The outfit is capable of cutting up to 6 inches (152mm) of steel, but this requires purchasing optional larger cutting tips. The included MC12-1 tip cuts up to 5/8 inch.

The kit includes regulator mount check valves (H698) which prevent reverse flow. While the in-tip mix design offers significant resistance to flashback, adding external flashback arrestors is recommended for maximum safety.

The regulators and torch handle can technically handle propane, but you must change the tips and the hose. The included hose is Grade R (Acetylene only). You would need Grade T hose and propane-specific tips for safe operation.

The kit comes with one MC12-1 cutting tip, one MW205 welding tip, and one MT603 heating tip.

Yes, the WH100 handle is compatible with the full line of Smith MW series welding tips and MT series heating tips designed for the 100-series handles.

The outfit is covered by the Miller/Smith True Blue 3-Year Warranty, covering the regulators, torch handle, and cutting attachment.

No. B tanks use CGA 520 and MC tanks use CGA 200. This CGA 300 regulator is for larger commercial cylinders with a flat-faced female valve.
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