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Which nocks am I shooting?

Updated: Mar 3

It's sometimes hard to tell which nocks you are using if you are not familiar with the vast variety out there! And when a manufacturer says they make a "small groove" nock, it is not necessarily the same as another manufacturer's "small groove" nock. You will get the best nock fit and arrow flight if your nock is custom fit to your string. The first step is knowing which nock you are using. Here's a guide to help with identification:


Nocks by Type


Pin nocks

Note: Beiter nocks are only shown in their pin nock form above, however Beiter nocks are made in press fit styles as well. From my experience, these nocks are the most consistent in terms of throat size across their many offerings. It should also be noted that the #1 and #2 nocks are an asymmetrical design while the hunter nocks are symmetrical.


Press fit nocks


Glue on nocks


Over Nocks


Nocks by Throat Size

These are organized by type. Unknown sizes are omitted.


Pin nocks


Press fit nocks


Glue on nocks


Over nocks


Throat measurement

When it comes to string fit, the most important part of the nock is the throat size. Many manufacturers list this size in their packaging or marketing materials. These sizes are far from what we were actually measuring in some cases. So all the measurements listed above are throat measurements as measured with a set of pin gauges in thousandth of an inch increments.


If there are any nocks listed above without a measurement that means we don't have a sample to measure. If you have such a nock and want to send it along to expand the collection that would be greatly appreciated!




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3 comentários


Andrei Stanescu
Andrei Stanescu
29 de jan.

About the discrepancy with the manufacturer's numbers, I believe it's because of not measuring the same thing, or manufacturers not being consistent what they report. Fwiw, Beiter is by far the most clear with their measurements ❤️ For a nock, there's the throat and the groove (the gap between the arms) and manufacturers from what I measured myself, they most often report the groove value. For example, Easton G Small which is said to be .088" is accurate when when you measure the gap between the arms, and the throat comes out at .100". Both throat and groove are important. The throat tells how much play there is with an arrow nocked, and the groove tells how much force it takes to…

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Andrei Stanescu
Andrei Stanescu
29 de jan.
Respondendo a

To best measure the groove, I found a set of feeler gauges and a caliper are great. I combine various the feelers until I get a fit where both nock arms make contact, but don't put much pressure and then I measure them with the caliper.

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OMG! Thank you! I have to search for nocks to fit nearly every time I buy arrows. The description never mentions throat size and rarely the nock info at all. Then, I buy the exact arrow again and they come with a different nock throat size as if it doesn't matter. Thanks for the attention you give to this and how consistent your strings are!!!!


I had to order nocks for a new set of Black Eagle Intrepids because the throat size was too big and learned that they shipped with "micro" and I needed "micro st" to match my other set of the exact same arrows. It would've been nice to know that the manufacturer had made that figure...

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