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Park Tool 3.2mm Square Socket Internal Nipple Spoke Wrench, 3.25-Inch

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$12.99

$ 5 .99 $5.99

In Stock

About this item

  • Fits internal nipples on many deep section aero rims
  • Extra long (3.25"/8.5cm) spoke wrench socket
  • Ergonomically-designed screwdriver handle
  • 5.0mm - Hex Socket



Product Description

Park Tool SW-16 Internal Spoke Wrench in use

Park Tool SW-16 Internal Nipple Spoke Wrench — 3.2mm Square

Some aero wheels found on road bikes feature spoke nipples accessible only through the spoke holes on the outside of the rim. The SW-16 is designed to access these hard-to-reach nipples, with an extra long reach (3.25"/ 8.25cm) for those deep aero rims. Features a comfortable dual-density handle.

The SW-16 is sized for 3.2mm square socket nipples. The outside shaft diameter is nominally 6mm to clear small spoke holes.

Lineup of internal spoke nipple wrenches

ALWAYS TRUE

There are many different sizes and even shapes of spoke nipples, some of which are very similar to one another. Nipples are typically made of soft material and can be easily damaged by the wrong sized spoke wrench (or poor-fitting off-brand wrenches), so having the correct wrench is important. Luckily, Park Tool offers a full range of spoke wrenches in virtually every size found on a bike. Here's a selection of the spoke wrenches we make for truing wheels with internal nipples:

TRUSTED SINCE 1963

Since our origins in the back of a bike shop in 1963, it has been our sole mission to design and manufacture high-quality tools that empower mechanics and riders of all skill levels to service their bicycles. As with our other 500+ tools, our wheel truing tools are a product of our decades of experience and expertise in the industry, in the shop and on the trail.


CautiousBuyer
Reviewed in the United States on March 13, 2024
I have spokes where the nipple is inside the rim deep in a well. The only way to turn the nipple is with a proper size tool like this. It also needs to be long enough to get into the well in the rim. This works perfectly.
mtn rider
Reviewed in the United States on October 23, 2024
It's unfortunate that Enve uses internal nipples because it's not fun having to have to re-tape your tubeless wheel just to true it. This tool worked great. It's tricky to keep the sapim spoke from turning when using this tool. They make special tools for that but I only had a vice grip
Customer
Reviewed in Canada on April 22, 2024
As expected! Top quality tools that do the job everytime!
Hoddy 1
Reviewed in the United Kingdom on May 26, 2023
Quality tools would have given 5 stars but only gave 4 as made in China
Pat Chamberlain
Reviewed in the United States on December 20, 2022
I cannot honestly give an opinion on this tool as it’s part of a Christmas gift, and the person who will be receiving this tool is an avid bicycle rider and it was on her Christmas wish list, so I know she will be happy with it.
Alberto
Reviewed in Italy on November 17, 2022
Park e vai sul sicuro !!
BigFishRacing
Reviewed in the United States on January 31, 2022
Very poor quality from Park. The wrench I received clearly has a manufacturing defect compared next to a known good wrench. The square drive is undersized and not square with rounded corners, so it fits very poorly onto the nipples...it only fits halfway onto the nipple because it is so tight from being undersized, and gets stuck trying to pull it off. If you look closely it's also not beveled like the good wrench, so I wonder if it missed a final stage of manufacturing?One other critique is the rubber handle is too abrasive. Building wheels all afternoon gives you blisters on your palms. I wish the handle were just straight plastic without the rubber so it'd be easier on the skin.
Sorlo
Reviewed in the United States on December 8, 2021
Great quality tool for internal nipples. IMO, while Snap-on's for automotive, Dewalt for power hand tools, Park Tool is definitely for Bikes.
Thorsten Keller
Reviewed in Germany on April 8, 2021
Der ParkTool SW 16 passt super auf 3,2 mm Nippel, die von Innenseite der Felge zentriert werden müssen.( Beispielsweise Enve)
tim
Reviewed in the United States on September 18, 2019
Thought it fit snug on spike nipples but it’s a basic low quality driver with high price tag.Something i would expect to be 2.99
Cliente
Reviewed in Spain on November 6, 2016
Es una herramienta de muy buena calidad. Tiene muy buen acabado.Es específica para los radios de mi bicicleta reclinada Muy recomendable.
Alex Paul
Reviewed in the United States on May 6, 2015
Park tools are always a great purchase.. Does what it was designed to do and built to last..
PolarUser
Reviewed in the United States on April 29, 2015
Works great and is long enough to work on my 90mm deep dish carbon wheels.