The Ergo Wrench Large is a must-have tool for climbers and route setters, providing an ergonomic design that fits comfortably in the hand. Its rounded tip ensures easy alignment with larger climbing holds, saving time and effort. Built with durability in mind, this wrench includes a 5mm hole for attachment to a carabiner, making it convenient to carry while route setting. Compatible with all standard 10mm & 3/8" UNC socket head bolts, it is the perfect addition to your climbing toolkit.

  • Ergonomic design for comfortable handling and efficient use.
  • Rounded tip for easy alignment with larger holds.
  • 5mm hole for attachment to harness or carabiner.
  • Fits all standard 10mm & 3/8" UNC socket head bolts 
  • Will work with Metric 10mm bolts.
  • HOW TO ATTACH A CLIMBING HOLD TO A PLYWOOD WALL - Click Here
  • All bolt-on holds/sets require socket head type bolts, except for the Classic Footholds Set which requires countersunk head bolts.
  • All bolts Uncarved Block sells are imperial 3/8" diameter with UNC threads. All holds compatible with 10mm metric bolts.
  • Unless otherwise stated, t-nuts are not included with holds or sets.
  • Any items shown in pictures other than holds are to show scale and are not included with purchase.
  • More information about hold colors click here.
  • Bolts optionally supplied with holds/sets are suited for 17 mm thick climbing walls, if you require longer bolts order these separately.
  • It is cheaper & faster to select random colours.

Easier to use than standard hex keys

By: on 13 February 2026
Way easier to use than standard hex key
(5)

Great Wrench

By: on 4 February 2026
Great wrench, been using it for a while and going strong
(5)

Improved

By: on 5 May 2023
I had one of these when they were made of fibreglass, but it broke. Glad they are now made of urethane. Fits perfect in the hand and large enough to get enough torque on it.
(5)

Feels goooood!

23 July 2020
Works perfectly and looks great.
(5)

Super handy and super ergo

25 June 2020
I love this little tool. It is super helpful when setting routes and really sits nice and comfortably in the hand. Not as clumsy as an impact driver. The rounded tip is great because sometimes the hold is just out of reach to get square to it, so when your reaching out you can still tighten and loosen bolts. Really happy I added this to my order
(5)

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