(Last Updated on May 10, 2024 by Henry)

GD Iron Grip EXT 90 –

  • Name: GD Iron Grip EXT 90
  • Category: Adjustable Spring Hand Gripper
  • Purpose: Crush Grip
  • Rating: 4.8 out of 5 stars
  • Vendors: Amazon, Temu

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GD Iron Grip EXT 90 – Review

Overview, Details & Everything Relevant You Need To Know

Overview:

What are the Pros & Cons with EXT 90 Adjustable Gripper?

Superbly Engineered

Pros:

Cons:

EXT 90 Adjustable Gripper – Ranking 96 out of 100

Excellent Equipment

Is Adjustable Gripper a Good Long-Term Investment?

Six Grippers in One

CoC gripper VS EXT 80 adjustable hand gripper

The EXT Adjustable Grippers Axis of Handle is Not Twisted

Excellent for Training Both Hands

Compared to regular classic spring grips, the EXT grip’s axis of the handle is not twisted.
It’s a peculiar innovation for the GD line of grippers.

Most Regular Grippers Have Right-Wing Springs

So what does that mean for you? First & foremost more convenience. Instead of getting specialized grippers for both hands, such as right-wing & left-wing spring grippers, you can use EXT grippers for both hands & they feel pretty much the same way. It has a more ergonomic design than most other grippers can offer you.

A right-wing hand gripper, designed for right-handed crush grip training – Captains of Crush
A left-wing hand gripper, designed for left-handed crush grip training – CoC Left-Turn

#1 Classical Gripper
Captains of Crush - The Gold Standard of Hand Grippers

#2 Lefty Gripper
CoC Left-Turn Hand Gripper

#3 Smooth Gripper
Zenith Hand Gripper - The comfortable crush by IronMind

#4 Thumb Gripper

There are Two Versions of EXT Adjustable Grippers With Handle Extensions

Black & Red

EXT 90 (Black),
by GD IRON GRIP

Resistance levels are
25 kg (55lb) to 90kg (198lb.)

Black (tougher)

  • Stage 1. 55lb (25kg)
  • Stage 2. 84lb (38kg)
  • Stage 3. 112lb (51kg)
  • Stage 4. 141lb (64kg)
  • Stage 5. 170lb (77kg)
  • Stage 6. 198lb (90kg)

Red (easier)

  • Stage 1. 55lb (25kg)
  • Stage 2. 79lb (36kg)
  • Stage 3. 104lb (47kg)
  • Stage 4. 128lb (58kg)
  • Stage 5. 152lb (69kg)
  • Stage 6. 176lb (80kg)

EXT 80 (Red),
by GD IRON GRIP

Resistance levels are
25kg (55lb.) to 80 kg (176 lb.)

EXT 90 Adjustable Gripper Includes Handle Extensions

Make it More Challenging

This is a pretty straightforward upgrade to your gripper & is exactly as it sounds:
Make the handles of this adjustable gripper even longer.

GD Iron Grip EXT 90 vs EXT 80

1

This is a great option in case you’re an individual with larger hands. There are plenty of bigger & stronger guys out there, with extra large hands, who are doing repetitions with hand grippers using only 3 fingers & thumb to squeeze.

By making handles longer you don’t have to neglect your pinkie finger anymore & you can utilize it along with your other fingers. It’s great & leaves no excuses to get the maximum out of your grip workout.


2

Another possible upgrade with longer handles is to make a gripper more challenging – It’s depending on how you place the gripper in your hand. Also, this can & will vary a bit from person to person depending on their hand sizes.

If you are a person with smaller hands, then you have a lot more options & room to play around. A great way to get creative & challenge yourself in numerous different angles & starting positions to close the gripper.


3

Also, longer handles are excellent, if you can’t close a gripper on a higher resistance level yet & you’re doing negative repetitions. Longer handles are great to help you close the gripper with two hands & practice negative repetitions.

In fact, if you’re serious about getting to the next level in your gripper game, doing negative repetitions is not only necessary but a big part of your grip strength progression. Having longer handles on the gripper is definitely a positive & effective contribution you don’t want to miss out on.

Why is Your Hand Gripper Quality Important?

Avoid Injuries & Be Consistent

  • Durability – Cheap plastic gripper springs tend to snap much more easily. You might get injured as well if spring shatters in splinters. Here’s the number one reason to take a bit more expensive route. The quality product ensures less hassle through equipment failure. Invest smarter, avoiding unnecessary injuries caused by faulty devices as much as possible.

  • Consistency – Cheap grippers spring wear out quickly. Let’s say you’re buying a cheap, hard-to-close close100-lbs plastic gripper. A couple of months later you’re closing it for reps like a master, making you feel like you’ve made a lot of progress. Wrong, the reality is that the gripper spring just wore out. To monitor your progress, a high-quality gripper is a must.

Thanks for Stopping By

Have Questions?
Please Leave A Comment

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13 thoughts on “GD Iron Grip EXT 90 – One of The Most Unparalleled Gripper?

  1. Wassup Henry

    The EXT 90 looks like a great buy.

    People should understand you pay for value. And the EXT 90 is durable and high quality.

    I think it looks amazing and I love the option to change the weight.

    This will make it more challenging and put more muscle on my forearms.

    Quick question: Does it come with a training program?

    1. For gripper training check out books called Captains of Crush Grippers: What They Are & How to Close Them, by R. Strossen &

      Grip Strength, How to Close Heavy Duty Hand Grippers, Lift Thick Bar Weights, & Pinch Grip Just About Anything, by R. Spindler & T. Heslep

      No particular exercise program along with EXT 90 but it’s a gripper like rest of them so aforementioned manuals are appropriate.

  2. Henry
    I like this article. I used the old style grippers as a kid.

    They were either too easy or too hard. I always worried about injuring myself.
    These adjustable grippers look great. The settings chart was a big help.

    Do these work more than the muscles in your hands?
    Do they improve wrist and lower arm muscles as well?

    1. Yes. Grippers are definitely your bread & butter to develop crushing grip strength, to build formidable finger strength & strengthen tendons.

      You can also use them to perform static holds to build support grip strength that is good for deadlift.

      To improve wrist strength, much more direct approach would be to use wrist rollers & flexbars. Fun to use & they burn up your forearms in no time.

  3. This is really cool and helpful.
    I’ve been using the old and cheap handle thats passed down from generations lol.

    But i’ve been looking for ways to improve my grip. So far i just been doing fingertip pushups whenever i can.
    But this seems like it’ll do the trick.

    Is amazon the cheapest place to buy?

    1. Amazon is one of the more reliable places to buy just about anything. Also, it pays off to keep an eye out for sales, discounts happen frequently.

      Those cheap handles are a wonder – Sometimes they snap right off the bat, & sometimes they seem to have infinite durability. Looks like you’ve been blessed with the latter.

      Fingertip push-ups are pure awesomeness for impressive finger & open hand static strength. Thanks for mentioning & bringing it up. For counter-movement, I’d throw in some handbands to build strength for hand extensors & muscle balance.

  4. Hey Henry!

    I didn’t even know that such a grip training product existed at all! Your post on this item is very informative and very detailed. I also like the fact that you wrote the cons of this item as well (although it doesn’t seem to have many).Thank you for your review!

    1. There are whole myriad of fun gripster items available & many of them you find right here as well. Spring grippers are just the beginning. Thanks for stopping by. It’s nice to hear I was able to bring something new to table.

  5. Hi Henry!

    I really love that they’re adjustable!
    I’ve had many grippers in my life, mainly plastic ones, and they are noisy and easily breakable.

    I think I will give these a try for a change, they look really reliable with that ergonomic and high quality material.

    Thanks for the thorough review and charts! Very helpful!

    1. Plastic grippers can be fun but yeah, they’re also unpredictable, going *SNAP* just like that.
      Thanks for sharing your experience.
      Would love to hear about your progress once you get going & trying a new angle.

  6. Dear Henry,

    Hello Henry. I’m Jisu An, overseas manager for GD. We are manufacturer of the GD IRON GRIP EXT 90.
    I found your review of GD IRON GRIP EXT 90 and it is really impressive review.
    I appreciate your detailed review. I was very surprised that you know the exact strong points of the gripper.
    I’d like to upload your review on our official website. Is it fine? 🙂 I want to introduce your wonderful review to our customers.

    And also, we are preparing for launching new gripper and other home gym equipment.
    If I have a chance, I’d like to send you our new products when it is ready for launching.
    If you are interested in getting free samples, please feel free to contact me.
    I think the Amazon link of GD IRON GRIP EXT 90 that you uploaded is invalid.
    Thank you so much for your great review.

    Best regards,
    Jisu An.

    1. Jisu An, nice to hear from you & that you like what you see. Feel free to share my article through social media links & thanks for your keen eye, I’ve updated all the links. Every now & then it is bound to happen with affiliate links. Stuff gets moved to a different location. Not a question if but when.

  7. Dear Henry,
    I am Andy Shen, we are manufacturer of gym chalk block, gym chalk powder, gym chalk ball and liquid gym chalk.
    We sell our products to USA, UK, GERMANY and so on.
    If we have a chance, we’d like to send you our products detail information.
    If you are interested in getting free samples, please feel free to contact me.
    Best regards
    Andy Shen

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