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Description
CMT 991.285.00 C-Spanner 80-90mm (ER20/ER25)The CMT 991. 285. 00 is a c spanner 80 90mm for er20 and er25 collet nuts for tightening and loosening precision collet nuts on CNC chucks. Use with CMT TW 200 torque wrench for proper clamping torque. SPECIFICATIONS Order Number 991. 285. 00 Description C Spanner 80 90mm for ER20 and ER25 collet nuts Country of Origin Made in Italy All images are provided to us by the manufacturer for illustrative purposes only. Please see item description for
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.2 ★★★★★
Based on 1831 reviews
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Product Reviews
★★★★★ 5
Works just as well as the official parts, for less
Color: Omni S1 Pro 17P
Been going through these for about two years now across multiple replacements and they perform just as well as the official Eufy parts. Main brush, side brushes, filters, dust bags, mop — all fit correctly and do the job without any issues.
Honestly if you’ve got a Eufy Omni S1 Pro, just buy these instead. No reason to pay extra for the official kit when these hold up just as well over time.
No complaints
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Amazing replacement parts
Color: Omni S1 Pro 17P
Works just like original parts, and fits my s1 perfectly. Mops are super easy to change and clean
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Reviewed in the United States on November 21, 2025
★★★★★ 5
fits my S1 perfectly
Color: Omni S1 Pro 17P
works well with my vaccum
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Reviewed in the United States on October 24, 2025
★★★★★ 3
Not a good fit with the eufy
Color: Omni S1 Pro 17P
It’s a good value for all these pieces, but the dust bag does not fit well with the Juvi. I haven’t tried the other piece pieces. I will return it.
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Reviewed in the United States on November 22, 2025
★★★★★ 4
Mostly fine replacement parts
Color: Omni S1 Pro 17P
I can't get either of the rolling mops to snap into place no matter what i do, might have to tack on something so they stay in place. The main brush was a fine fit, but the side brushes seems more flat than the stock ones and it makes some weird noise now, they did snap on though. Filter was fine though and I haven't tried a dust bag yet, still good value even if I can't get the mops to fit for me!
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Reviewed in the United States on December 6, 2025
