Useful Stuff

The place you will find the "Useful" information pertaining to Racket Stringing. (Updated 9/2020).

RACKET STRING PATTERNS:  No need to pay for access to this, you can find a comprehensive racket list by manufacturer on Klipper USA's website.  Most racket manufacturers will also have it somewhere on their website.

Stringing Patterns can be found here.


Racket Grommets:  Tennis rackets will generally have a head-guard at the top protecting the frame from scrapes and the like. The rest of the holes on the frame most likely have a grommet on a grommet strip going through (yes there are actually a few older rackets out in the market that did not have grommets protecting the string through the hole).  When these parts (grommets) wear out and get brittle and hard (from age, poor stringing and sun and extreme cold) they tend to break and crack over time.  If the grommets break and tear it creates a place for the string to also get damaged especially in tight corners where the string has pressure on the frame / grommets due to the angle.  These 'corner' areas are generally the first place you will see damage (generally found around 11, 1, 5 and 7 o'clock positions on the frame) because the grommets get somewhat stretched here.  This is always the first place I look for premature breakage of string.  There are three basic options when you see cracked or broken grommets.  You can replace whole grommet strips, repair by grinding one out or use tubing to repair. Biz Tip:  always inspect the grommets in front of your client and offer to repair and / or replace any broken or cracked ones.  I generally do not warranty 'stringing work' if there is a damaged grommet and no repair was authorized.  Generally putting tubing in fixes the issue short term and does not create any additional cost for my stringing client.

To repair grommets you will need Racket Tubing (generally can be found in nylon or teflon coating) and a string cutting tool  for repair or 'single' grommet packs for replacement of individual grommets and  a grommet grinding tool (Tennis Warehouse has these and the grommet kit and grinder will run you around 50 dollars) .  Racket Tubing can be purchased at wholesale tennis, manufacturers and sometimes even hardware stores.  There are a number of thicknesses (gauges) and you want to make sure you don't use one that is too big or small for the hole for the gauge string you are using.  TIP:  My rule of thumb here is that if there are more than one or two holes that need tubing I look to replace the grommets all together because it tells me that the grommets may be hardening and /or getting brittle in general and this would be a good time to replace and avoid any future problems.  If only one or two holes I may just put some tubing in.  To replace grommets you will need the grommet kit that was designed for your specific racket (each racket and manufacturer generally makes these available for at least the duration that that racket model is current.  Some tennis retailers / online warehouses have these in stock. I generally stay away from grinding out grommets as it can be more of a hastle (in my opinion).   TIP:  If you play with a racket that is soon to be discontinued and you love it than it might be worth picking up a grommet strip for it to have for the future.  Grommet sets usually come with the 'head-guard' and the grommet strips that go on the sides and the bottom of the racket.  TIP:  Check with your local tennis shop for help on replacing if needed.  TIP:  Do not remove the old strip until you have a new one with you as it is almost impossible to put the old one back if needed.  Once you string the racket for the first time the grommets 'seed' into place and spread out some.  Video lesson on how to R/R grommets and head-guards coming soon.

Replacing grommet strips.  I see this as the most standard way of taking care of the problem longterm and may add more years to the frame as well.  I have found that broken grommets can allow the string to tear into the frame and cause the string hole to enlarge and then create permanent damage.  Another advantage to replacing the whole grommet strip is that it makes it easier to string and less possibility to damage string, etc.     Biz / Pro stringing tip:  You may want to learn to replace grommet strips, once you have had practice is should generally take 5-10 minutes and just remember it also requires a new racket stringing as well afterwards ( you should charge for the part / labor to r/r and the stringing). There are additional benefits to your business here and it creates a full- service for your customer and keeps them happy and coming back.

PLEASE NOTE:  The links may take you to external sites that I use but are not affiliate links.  I do not want to make money on the items I promote for the basic reason that I want to share my tips and don't want to endorse items to make an affiliate income especially if the item turns out to be junk, I am just helping other stringers get better and sharing what I use for better or worse.  Please support this site by sharing the info, provide feedback and donating via Paypal.

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