Order 2 or more Machines. Get 5% off each. Discount in cart.

All pieces interchangeable. Mix and match.

Order 3 or more. Get 10% off all. Discount in cart.

Beater Upgrade Kit

The most requested upgrade to The Miller Machine.

Upgrade any existing Miller Machine to hold the new custom designed 5/16" solid body brass, or steel beater.

You'll also get all the pieces and parts you need to convert any original Miller Machine to hold the new beater.

I recommend brass for your Triangle Machine and steel for your Finger Cymbal Machine.

If you're looking for a brass option for your finger cymbal (or crotale note) try the Brass Ball Beater.

[Finger Cymbal Arm, finger cymbal, Miller Machine Body, mount, Triangle Arm, triangle, not included]

13 items left

Customer Reviews

Based on 8 reviews
Dan L. (Chicago, IL, US)
The Miller Machine Upgrade Kit

The Upgrade kit is tremendous! So glad to have beater options now, as well as extra ties in case of emergency. And I received my order in an incredibly timely fashion-no small feat nowadays. Thankxx so Billy Miller!

Thank you Dan! I'm glad you like all the new upgrades. Billy

James W. (Las Vegas, NV, US)

I’ve been using Miller Machines since 2015, and never hit a gig without them. An incredible piece of innovation that truly improves mobility within multi-percussion and musical theatre/Broadway setups. Billy is constantly upgrading and improving upon the designs—the recent beater upgrade is wonderfully nuanced. Thank you for all your work, Billy!

James! Thank you for this wonderful review! Billy

Tim G. (London, ENG, GB)
Beater Upgrade kit

I’ve been using the Miller Machines on nearly all of my shows for the last 10 years and they’re great products and are totally reliable. The beater upgrade kit gives you extra volume and tone and for me it has meant I never need to resort to using a heavier separate beater to get more sound out of the instruments. Highly recommended.

Great! Glad the Beater Upgrade is working out for you Tim, and thank you for the review! Billy

Brian H.
Beater Upgrades

I recently purchased the beater upgrade for both my legacy triangle and finger cymbal machines. The sound improvement is amazing with no impact to feel or playability. I also purchased the new and improved finger cymbal mount which works great. Thanks Billy!!

Brian, thank you so much for your review, I appreciate it! Billy

What You Get

Custom designed 5/16" solid body brass, or steel beater.

Custom Made Red Latex Striking Surface.

Hex Wrench.
(remove old collar-lock)

Eyebolt with Grommet.
(replace old eyebolt)

Retaining Ring.

Easy to Upgrade, watch the video.

Photo of The Miller Machine Beater Upgrade Kit, that includes a brass, or steel solid body beater, red latex striking surface, eyebolt with grommet, hex wrench to remove old collar lock, and rubber retaining ring.
Photo of a Miller Machine, Triangle Machine with custom designed solid body steel beater.


The 5/16" solid body beater was designed specifically for The Miller Machine.

Length, weight, and balance (fulcrum) all optimized for The Machine. 

Striking Surface

Includes the custom made red latex striking surface.

Excellent Rebound.
Natural Feel.
Minimal Stick Attack.
Great Visibility in Low-Light Settings.

You'll always get a great triangle sound.

Closeup of Finger Cymbal Machine custom made striking surface.

Swap Beaters

The Beater Upgrade Kit also makes it possible to mount ANY triangle beater with an 1/8" shaft on any existing Miller Machine.

This means you can use any size of your favorite Black Swamp, Dragonfly Percussion, Freer, Grover Pro, Stoessel, etc... on your Miller Machine.

Easy to swap, watch the video.

Built by Hand

Everything's designed and built by Billy Miller in his workshop in Seattle, Washington.

Photo of Billy Miller in his Miller Machine workshop in Seattle, Washington.

"Thankfully, the new beater upgrades arrived just in time to use them on this run!

I knew the upgraded beaters would be better, but I was really surprised with how good they sound! I still play the triangle by hand when I can for more control, but the sound between my Stoessel beaters and the brass beaters with the upgrade is nearly indistinguishable."

Matt Ordaz
La Mirada, California