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Ships within 48 hours · Estimated delivery Jun 27 - Jul 2
For Your Every Summer RSVP, with Code: SUMMER15
Description
Arrma Steel Mod1 Pinion Gear (w/5mm Bore)These Arrma Pinion Gears are MOD1 and are offered in a variety of tooth counts. Each package includes one Steel pinion gear and one set screw. Features: Strong and durable steel for long lasting performance in extreme RC conditions Precision manufactured tooth profile for smooth operation Precision manufactured double set screw holes for the fitment of set screws either side of the motor shaft for extra secure fitting For fitment to 5mm motor shaft


Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 757 reviews
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Product Reviews
★★★★★ 5
Unlock your machine's potential
***Twist the WDT tool to remove dont try to just pull, or use your finger nails A slight twist will break the magnetic bond and the tool just comes out of the handle***
i got this to get away chemicals, hot acidic coffee possibly leaching plastic and aluminum that the stock portifilter is made from. This seems like a nice stainless by the looks and heft of it. Aluminium is bad for the brain and plastic is just bad.
Function... Im not using a 200$ or more grinder or anything... Just fresh beans and a 30$ wancle amazon burr grinder and this is pulling beautiful bottomless shots that really helped me dial in better and see my channeling issues that intern lets me adjust and get better.
The stock tapered basket prevents consistant tamps and keeps you from using off the shelf filter papers at the bottom of the basket.
i have to use a gram or 2 more for my dose but that just means stronger drinks. I can tell visually im getting more extraction now that im dialed in by the color after adding milk.
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Reviewed in the United States on March 27, 2026
★★★★★ 1
It doesn’t even fit
It doesn’t fit our Breville Barista Pro because the portafilter head is too tall. Such a disappointment.
Update: Absolutely horrible customer support as well. Their only attempt to rectify the situation was by double checking their own portafilter they have and confirming it works. It’s equivalent of “we investigated ourselves and found nothing wrong.” No replacements, no willingness to accept constructive criticism in order to change the dimensions slightly by decreasing the height of the portafilter head by even a millimeter to make it work, nothing. Just a slap in the face telling me to return it and be gone. Avoid this product.
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Reviewed in the United States on January 4, 2025
★★★★★ 4
More work than it’s worth
It was great quality and the weight was nice, but it was odd having the open bottom and no spout to dribble into a cup when making an espresso. It was difficult to get the wire tool out of the end of the handle, making it difficult to use. I was not that impressed and it’s quite expensive.
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Reviewed in the United States on March 5, 2025
★★★★★ 5
Quality and Function
Looks like a silly little thing, I am not a coffee enthusiast. But it does exactly what it is supposed to do and with high quality. The device (a stretch to call it that) is made of sturdy materials including the needles. They give you two different thicknesses of needles, one for expressi (0.3) and one set for coffee grinds (0.4). Each comes wth some spares. The stand is well designed and keeps grinds from spreading all over. It is very elegant design. I use this with a dosing funnel on my portafilter. Not the cheapest one could buy but well worth the money.
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Reviewed in the United States on March 16, 2025
★★★★★ 5
Well made, high quality product.
This product demonstrates excellent quality, featuring a robust construction and intuitive design for ease of use. It includes two distinct wire sizes and offers straightforward assembly. Its superior durability and strong magnetic properties ensure effortless reattachment to its stand.
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Reviewed in the United States on June 30, 2025




