Skip to content
Crucible
Download on the App Store
Crucible

Crucible is a precision strength training system built around your body, your equipment, your location, and your time.

Download on the App Store

© 2026 Crucible Fit, LLC. All rights reserved.

Explore

  • Exercise Library

Legal

  • Terms and Conditions
  • Privacy Policy
  • Consumer Health Data Notice

Support

  • Support
  1. Home
  2. /
  3. Exercises
  4. /
  5. Arms
  6. /
  7. Dumbbell Over Bench Wrist Curl

Exercise guide

Dumbbell Over Bench Wrist Curl

  • Beginner
  • Isolation
  • Rep-based
  • Upper arms

This isolation exercise specifically targets the wrist flexors on the underside of the forearm, essential for building grip strength and forearm thickness. Using a bench provides a stable base that prevents momentum, ensuring the forearms do all the work.

Reviewed by the Crucible team · Updated June 2026

Watch the Dumbbell Over Bench Wrist Curl demonstrationGuided video and your full workout live in the Crucible app.

Muscles worked

Primary

  • Forearms

Secondary

  • Biceps

Equipment

  • Dumbbell

Setup

  1. Kneel beside a flat bench or sit on the edge with your feet flat on the floor.
  2. Grasp a dumbbell with an underhand (supinated) grip, palms facing up.
  3. Rest your forearm on the bench so that your wrist and hand hang off the edge.
  4. Position your forearm perpendicular to the bench to ensure stability.

How to do it

  1. Inhale and slowly lower the dumbbell toward the floor by extending your wrist as far as comfortably possible.
  2. Exhale and curl the dumbbell upward by flexing your wrist, bringing the weight toward your body.
  3. Squeeze the forearm muscles at the top of the movement for a one-second pause.
  4. Lower the weight back to the starting position using a controlled 2-second eccentric tempo.

Form checklist

  • Keep your forearm glued to the bench; do not let your elbow lift.
  • Ensure the movement occurs only at the wrist joint.
  • Maintain a firm grip on the dumbbell throughout the entire range of motion.
  • Avoid using your legs or torso to generate momentum.

Pro tips

  • At the bottom of the movement, allow the dumbbell to roll slightly down into your fingers to increase the range of motion and stretch the flexors.
  • Focus on a slow, controlled eccentric phase to maximize time under tension, as forearms respond well to high-volume and high-tension work.

Make it harder

  • Pause for 3 seconds at the peak contraction to intensify the burn.
  • Perform the exercise with a 'thumbless' grip to further challenge your finger and wrist stability.

Frequently asked

What muscles does the dumbbell over bench wrist curl work?
The dumbbell over bench wrist curl primarily targets the forearms, and also works the biceps as secondary muscles.
What equipment do you need for the dumbbell over bench wrist curl?
The dumbbell over bench wrist curl uses dumbbell.
Is the dumbbell over bench wrist curl good for beginners?
Yes. The dumbbell over bench wrist curl is a beginner-friendly movement and a strong foundation to build on.

Related exercises

  • Band Wrist CurlBeginner · forearms
  • Barbell Behind Back Finger CurlBeginner · forearms
  • Barbell Palms Down Wrist Curl Over A BenchIntermediate · forearms
  • Barbell Palms Up Wrist Curl Over A BenchBeginner · forearms

Train this with a plan, not guesswork

Crucible builds the dumbbell over bench wrist curl into a precise program around your body, equipment, location, and time.

Download on the App Store