Hobart 500551 EZ-TIG 165i AC/DC TIG Welder Review

In Hobart EZ-TIG 165i Review we talked about the quality and the attractive visual appeal provided by Hobart is remarkable which makes the best budget welder. The price is a little too high which is due to the amazing features it possesses and the remarkable specification integrated into Hobart 500551 EZ TIG.

The costly Hobart 500551 EZ TIG may be a little disappointing to the hobbyist or the people new to the field as they would want a welder that is easy on their pocket so that they can pursue welding. The additional money that this welder is causing you is actually worth it. It is an astounding and incredible machine possessing a great number of quality features.

Hobart EZ-TIG 165i Review:

Hobart 500551 EZ-TIG 165i i AC DC TIG Welder Review

About the machine:

Hobart 500551 EZ TIG falls no short of quality and standard manufactured in the United States. This is a trusted machine coming with a warranty. You will be highly satisfied once you receive your package and start to use it. The rugged and rough design imparts additional strength to bear the loads and stresses.

Hobart 500551 – EZ-TIG 165i TIG Welder:

This also gives it enough friction so that it provides a tight and proper grip. The welder has exceptional durability due to the rugged design. The portability is another factor that makes it stand out among the other welders. The Hobart 500551 EZ TIG weighs just 50 pounds which provides the welder the ease and comfort to carry it around and take it anywhere, may it be inside or outside.

AC/DC TIG Welder

Hobart 500551 - EZ-TIG 165i TIG Welder

Hobart EZ-TIG 165i Review

  • Versatile use
  • Infinite amperage
  • Simple interface

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The machine features two of the handles placed at the top which further enhances the portability. It takes minimum space as it is a compact yet powerful welder. Moreover, the welder provides remarkable versatility. The feasibility provides to weld multiple metals ranging from hard as steel to soft metals like aluminum, Hobart 500551 EZ TIG is one of the best welders of tig currently in the market.

It provides the appropriate penetration required for the quality weld. The depth of penetration ranges from .81 millimeters to as much as 4.8 millimeters. The torch is included. It also has a foot pedal included. The cable and other accessories like the clamp make it really handy. It is all in the details which makes it just the best.

Features of Hobart 500551 EZ TIG:

Some of the exceptional and notable features of Hobart 500551 EZ TIG are as follows.

Easy setup:

Even a professional welder enjoys easy usage and detailed guidelines. The manufacturers have thoughtfully and carefully designed this welder to make sure that this welding machine is made as simple as possible to assist beginners. The three major operations which make it really simple to operate are

  • The easy switching. On and off operations are simple which can be performed with the utmost ease.
  • Amperage knob: This feature will allow you to just select the thickness of the metal you are going to weld and the machine itself will determine the appropriate amperage which is most suitable for that condition.
  • Power output: The output can be shown with convenience whether you want an AC output or DC, Hobart 500551 EZ TIG has got you all covered.

AC/DC output:

Hobart 500551 EZ TIG can be operated in both modes, whether it is AC or DC. The ease and versatility with which it can be operated with both are quite outstanding. The AC can be used to weld certain metals and the DC is suitable for some. Since Hobart 500551 EZ TIG can be operated on both, hence it possesses the incredible capability to weld a lot of metals covering a wider range.

The metals varying from hard ones such as steel or stainless steel to the relatively softer ones like aluminum or magnesium can be welded with ease.

Infinite amperage:

The amperage range of this machine is quite wide starting from 10 amperes to 165 amperes. Hobart 500551 EZ TIG provides infinite amperage. This means that the amperage need not necessarily vary in the multiples of either five or ten rather the welder can adjust it to whatever amperage you wish to set it on.

This enhances the feasibility and convenience which makes this machine personalized and handy. Consistent and quality welds can be imparted with this feature. The convenience to select it according to your requirements and specific needs lets you weld with precision.

Hobart EZ-TIG 165i Specification

High frequency:

This welder has this feature that lets it start at high frequency. This won’t make any contact with the metal. The arc will be held a little up to the metal. The tungsten won’t be consumed and therefore it is an economical machine.

Keeping tungsten at the height of half an inch over the metal and simultaneously pressing the foot pedal would be enough to start the process. This way, the contamination will be avoided and in some cases, completely eliminated.


This is a great feature. It will let the dirt and debris out while the smooth operation is performed. You can turn this on when needed. There is no necessity that it should be switched on all the time rather it depends on your ease and convenience. It will keep the pollutants and contaminants out hence enhances the life and durability of the machine.

Overheat protection:

Quality protection and right safety are ensured by Hobart Company. Hobart 500551 EZ TIG has this additional feature of automatic shutdown. It occurs if the temperature exceeds a certain limit. This will protect you from any miserable experience due to overheating.

Duty Cycle:

The duty cycle is not that appropriate. It is rather short than it should be. Hobart 500551 EZ TIG has a duty cycle which is just 20 percent of 150 amperes and this is not appropriate for high-end industrial tasks.

Inverter design:

The inverter design is provided for the reason that it will make this welder compact. This will enhance portability. Efficiency is the second major reason. This welder has quality power. This huge power is limited to a small unit which makes it quite efficient and effective in its operation.

Auto-post flow:

The optimum value of shielding gas is provided in the weld pool by this feature. This aids in reducing the time and additional energy.

  • Versatile use
  • Infinite amperage
  • Simple interface
  • Easy to operate
  • Starts at high frequency
  • Better life
  • Exceptional durability
  • Avoids pollutants and dirt
  • Compact size
  • Improved efficiency
  • Auto-post flow
  • Shutdown at high temperature
  • Remarkable weld is imparted
  • Can only be operated with TIG
  • Expensive


Final verdict:

This is a great welder having a number of quality features. The high frequency provided at the start together with premium protection and improved features makes it the best. However, there are downsides to this. The duty cycle is low but when we view all these features, it becomes worth it.

3 Resources for Women in Welding:

3 Resources for Women in Welding

Frequently Asked Questions:

Is the foot controller provided with Hobart 500551 EZ TIG?

This is not included in the kit. However, it can be purchased separately.

Who is Hobart 500551 EZ TIG best suited for?

Considering the simplicity and ease of operation, Hobart 500551 EZ TIG is best suited to the beginners and the hobbyist.

Is Hobart 500551 EZ TIG worth it?

The Hobart 500551 EZ TIG is expensive but it has improved efficiency, protection, and several other features that make it worth it.

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