Climb Design LittleHammer Nut Tool

Climb Design LittleHammer Nut Tool
Climb Design LittleHammer Nut Tool
Climb Design LittleHammer Nut Tool
Climb Design LittleHammer Nut Tool
Climb Design

A spring-loaded impact nut tool, LittleHammer delivers a percussive force to release stuck nuts, hexes, and RP's easily with one hand / either hand.

LittleHammer excels when dealing with RP’s and other micro nuts that are hard to dislodge being too small to strike accurately.

Of course, LittleHammer can be used for all the usual nut tool tasks like levering and hooking cam triggers too. The hook on the handle end of LittleHammer is for reverse impacts to get aid gear out: beaks, tomahawks, and peckers. No other nut tool can perform this function. We’ve also had good results experimenting with stuck cams using the reverse impact on each cam lobe.

LittleHammer is the heavyweight of nut tools: laser-cut from 2.6mm (7/64") stainless steel with a brass impact weight and stainless steel spring, it will last in all weather. Designed for years of hard use in trad or aid climbing; simple Allen screw assembly means it can be disassembled easily to be maintained for a long life of service.

Manufactured in Central Victoria, Australia.

Original MSRP, if Converted: 
$94.00 AUD
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Technical Specifications

Weight 130 g
Wiregate Clip No
Palm Protector No
Length 22.50 cm
Leash No


Shipping a LittleHammer to the US is about AU$31.

You can see a video of LittleHammer in action on Climb Design's website.

Common questions and answers from the LittleHammer designer:

Is it heavy?
Yes LittleHammer is always going to be the heavyweight of nut tools as the impact-weight is over half the total weight of the tool. More cut-outs from the body would add to the laser-cutting time (& cost) and only save a few grams, so I've stuck with sturdy.

LittleHammer has gone against the design trend of lighter and lighter nut tools. It's almost like a blind spot that none of this design evolution has addressed the primary function of a nut tool. Some tools have handle covers or shaping to reduce the impact on the palm, or added features, but none really help with supplying the required accurate crisp impact.

Seems expensive for a nut tool...
It'd be a hard sell being the most expensive and heaviest nut tool if LittleHammer wasn't so effective. In trying to be simple and light, nut tools haven't really got better at what they do. So we offer a more complex product to address this.

Value is a tricky thing with globalised production. Climb Design prides itself on using local resources and builders versus cutting costs by going with the cheapest overseas manufacturer. Climb Design wholeheartedly believes that it is important to us to be part of and contribute to the local economy.

Is it strong enough?
Impact wise yes. I had to increase the weight of the impact-weight during prototyping to get more grunt. I've started to do a bit of aid climbing and with all placements bounce tested and fully weighted I've been able to get them all out with LitttleHammer, especially good on RP's / micro nuts. Even helped me retrieve a well jammed hex from the back of an off-width. Sometimes it takes a few impacts to find the right angle for the force to unlock a nuts hold, but it's effective, quick, and one-handed.

Durability wise, it is made from 2.6mm (7/64 inch) stainless steel. LittleHammer was always going to be the heavyweight of nut tools so I've left the body pretty much solid. I could loose a few grams with cutouts but thought I'd go for tough and long lasting. Good for aid where carrying weight goes with the gig and every placement is jammed!

How well does the tool work for nuts size #5+?
LittleHammer is fine on the bigger nuts. I've also used it on a jammed hex.
It's the wedge shape of a nut that only needs to be reversed a fraction to release. Same at any scale, though the bigger ones might have a few more actual points of contact. These might take a couple of hits but that is more often about getting the right angle and good contact. You get better at this once you have a feel for the tool.