Dumbbell Hex Press For Building A Buff Inner Chest

Dumbbell Hex Press Exercise Guide

By: Jeremy Fox, CNC, CPTPublished: November 30, 2023

The hex press works the pectorals in a unique way that focuses on your inner chest. In this article, I will show you how to do a dumbbell hex press to bring out that mid-chest separation.

This video demonstrates how to do the dumbbell hex press in under one minute.

To achieve an impressive chest, one of the defining features is a defined split between the left and right pecs. However, standard dumbbell and barbell bench presses don’t specifically target this area.

So, if you want to learn more about how the hex press can help you sculpt your chest, keep reading or click below to jump to a specific section.

What Is The Hex Press?

The hex press is a variation of the dumbbell bench press, where you keep the weights touching throughout the movement. It is called hex press because, when performed with hexagonal dumbbells, the flat faces remain in contact.

However, you can also perform this exercise using round dumbbells or any other shape. Additionally, I will show you a few hex press variations that you can do without any dumbbells.

Dumbbells Hex Press

Figure 1. An example of hexagonal (hex) dumbbells with the faces touching. Doing the exercise with the dumbbells in this configuration helps you get your hands closer while keeping the weights stable.

Hex Press Muscles Worked

It’s important to understand that the chest does not consist of an inner and outer pectoral muscle. The fibers contract in their entirety, regardless of the exercise performed.

That being said, different exercises place varying amounts of load on different parts of the range of motion. For example, the hex press targets the pectorals more in the contracted range of motion than traditional presses.

This is because you have to apply an inward force with your arms to keep the dumbbells together. As a result, you’ll feel a more intense burn in the inner chest than the outer chest.

Additionally, the close grip exercise incorporates more triceps compared to a traditional dumbbell press.

Hex Press Muscles Worked

Figure 2. The purple shading represents the area of the chest targeted by the hex press.

Hex Press Benefits & Limitations

If you’re looking to sculpt your pectoral muscles and achieve the size and shape you desire, incorporating dumbbell hex presses into your chest workout routine can be a great option.

However, it’s important to keep in mind that this particular exercise may not be the best choice for building overall chest mass or strength gains.

Pros

  • Builds inner chest
  • Alleviates some stress on the shoulders
  • The triceps take some of the load
  • Can reach failure with relatively light weight

Cons

  • Not the best pressing movement for overall muscle mass or strength

When Should You Use The Hex Press?

It’s important to note that the hex press should not be used as a replacement for the wider grip barbell or dumbbell bench press. Instead, it’s best to use the hex press as a supplemental exercise to complement your normal chest workout.

To get the most out of this exercise, I recommend performing a standard pressing movement first when your strength is at its highest. Then, use the hex press as a second or third movement with lighter weights for 8-12 reps to maximize hypertrophy.

One situation where you may want to include this exercise is if you experience shoulder pain when performing the pronated bench press. The neutral hand position and close grip of the hex press can help to reduce the stress on your shoulder joint.

Lastly, I have found that using lighter close-grip presses can be a good alternative to traditional bench press when recovering from a pectoral muscle tear or strain. This allows you to activate your chest muscles without aggravating the outer pec insertion.

Dumbbell Hex Press

How To Do The Dumbbell Hex Press

To do this exercise, you’ll need a pair of dumbbells and a flat bench. I recommend you start with a lighter weight that you can control easily until you get a feel for the movement.

  • Sit on the flat bench with a dumbbell in each hand.
  • Lie back on the bench, keeping your feet flat on the floor for stability.
  • Engage your core and maintain a natural arch in your lower back. Ensure your butt and shoulders are in solid contact with the bench.
  • Hold the dumbbells with a neutral grip (palms facing each other) and the dumbbells touching. Extend your arms straight in front of your chest.
  • Lower the dumbbells slowly towards your lower chest. Keep your elbows at a 90-degree angle, forming an “L” shape with your upper arms and forearms.
  • Exhale and press the dumbbells back up to the starting position, fully extending your arms while maintaining a controlled movement.
  • Perform the desired number of repetitions, maintaining proper form throughout the set.

Hex Press Form Tips

Here are some additional pointers to help you get the most inner chest activation from the dumbbell hex press.

  • At the top of the movement, squeeze your elbows inward to maximize the contraction.
  • Lower the dumbbells so the top head touches your lower chest.
  • At the bottom of the movement, keep your elbows tucked in at your sides.
Dumbbell Hex Press Top
DB Hex Press Bottom
Dumbbell Hex Press Bottom

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Hex Press Variations

There are a few different variations of the hex press that you can use depending on your equipment and which area of your chest you’re targeting.

Incline Dumbbell Hex Press

When you perform an incline bench press, the angle of your arms in relation to your body changes. The steeper the angle, the more your upper chest is activated.

This means an incline dumbbell hex press targets your upper and inner chest, ideal for achieving that “Y” shaped split, as shown in Figure 2.

To perform this exercise, adjust the bench to an incline of 15-30 degrees. This angle will focus on your upper chest while minimizing the involvement of your anterior deltoid.

Plate Press

A plate press is similar to a hex press, except you use a weight plate instead of dumbbells.

During this exercise, you hold a weight plate vertical between your palms like you’re clapping symbols. With your hands in the center of the plate, press and lower the weight in the same movement path as you would with dumbbells.

This variation requires even more inner chest activation because the inward force of your hands is the only thing keeping the weight from slipping down. Start with a small plate to make sure you can hold it properly before working up to heavier weights.

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Smith Machine Hex Press

You’ll need a Smith machine and a “V” bar handle for this last variation. You usually use this handle on a close grip lat pulldown or cable row.

Next, set up a bench under the Smith machine bar and adjust the height of the bar so it’s just within arm’s reach. Now lay across the bench and hold the V-bar in both hands, with the cable attachment side facing you.

From this starting position, place the Smith machine bar in the center of the V and perform the hex press movement as illustrated below. I like this variation because the movement path is fixed so that you can focus on the mind-muscle connection.

Close Grip Pushup

If you’re working out at home with limited equipment, you can substitute a close-grip pushup for the hex press exercise.

To perform this exercise, start by lying face down on the floor and place your hands near your ribs with your elbows tucked in at your sides. From this position, perform the pushup as you normally would. 

If you have a pair of dumbbells, you can replicate the hex press grip by placing them side by side during your pushups. Additionally, you can wrap a resistance band around your back to increase the difficulty level.

More Chest Exercises & Workouts

The hex press is a great auxiliary exercise if you’re looking to refine and sculpt your inner chest. The inward arm force and neutral grip are unlike any other chest exercise, which adds variety to your routine.

With the variations included above, you can perform this exercise with whatever equipment you have available. For more exercise tutorials and workout tips, check out the related articles below!

How to Decline Bench Press for Lower Chest Gains

Quick Dumbbell Chest & Tricep Workout With Supersets

How to Do Chest Dips vs Tricep Dips for Upper Body Gains

21 Cable Chest Exercises for Upper, Lower, & Mid Pec Workout

How To Do A Dumbbell Fly To Sculpt The Perfect Chest

If you’re up to speed on chest exercises, feel free to browse my other fitness-related content below. You’ll find helpful information on workouts, nutrition, supplements, and bodybuilding news.

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