Key takeaways
- A nut tool is a thin metal pick used to free stuck climbing protection (nuts and cams).
- The follower uses it to 'clean' a trad route, recovering wedged gear.
- It pokes, pries, and taps stuck pieces loose without damaging the rack.
- An inexpensive but essential trad accessory, usually clipped to the harness.
What a nut tool is
A nut tool (or nut key) is a thin, flat metal pick used in traditional climbing to extract stuck protection — especially nuts, but also jammed cams. Nuts in particular often become firmly wedged after holding a fall or being set hard, and a nut tool is what frees them.
How it’s used
The follower (the second climber) uses the nut tool to ‘clean’ the route as they ascend, recovering each piece of protection. To free a stuck nut, you typically tap or push it from below to dislodge it from its constriction, then hook and pull it out with the tool. Patience and the right angle matter — forcing gear can damage it or the rock.
Following a trad pitch, the second reaches a nut the leader set deep into a crack after a fall. A few firm taps from below with the nut tool pop it loose, and they clip the recovered piece to their harness and continue cleaning the route.
Why it’s essential for trad
Without a nut tool, a firmly wedged nut can mean abandoning expensive gear. It’s a cheap, essential trad accessory — usually clipped to the harness with a carabiner — though sport climbers clipping bolts don’t need one.
The bottom line
A nut tool is the small, cheap accessory that saves expensive trad gear: a thin metal pick the follower uses to free nuts and cams wedged in the rock while cleaning a route. Anyone climbing trad should carry one clipped to their harness — without it, a stuck nut after a fall can mean leaving good protection behind.
Frequently asked questions
What is a nut tool used for?
A nut tool is used to remove climbing protection that has gotten stuck in the rock — primarily nuts, but also stuck cams. In traditional climbing, the follower uses it to 'clean' the route, prying and tapping wedged gear free so the rack can be recovered and reused.
How do you use a nut tool?
To remove a stuck nut, you typically push or tap it from below to dislodge it from the constriction it's wedged in, using the tool's hooked end to pull it out. For a stuck cam, the tool can help retract or nudge it. The key is patience and the right angle — forcing it can damage gear or the rock.
Do you need a nut tool for climbing?
For traditional climbing, yes — it's essentially essential, because nuts and cams frequently become wedged after a fall or when set firmly, and without a nut tool you may lose expensive gear. Sport climbers (clipping bolts) don't need one. The follower typically carries it to clean each pitch.
Sources
- Trad climbing & cleaning gear — American Alpine Club
- Climbing gear — UIAA