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Ships within 48 hours · Estimated delivery Oct 1 - Oct 6
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Description
ER-Precision collet | stainless steel ER25 | 430ESP | < 5 µm | Ø 7,0 - 6,5Rustproof Stainless steel 1. 4021 x 20Cr13 HRC 43 47 Longer lived than standard collets Higher repeat accuracy Maximum concentricity <0,005mm Honed collet boring Especially suitable fore wire EDM
- Rustproof
- Stainless steel 1.4021 x 20Cr13
- HRC 43-47
- Longer-lived than standard collets
- Higher repeat-accuracy
- Maximum concentricity <0,005mm
- Honed collet boring
- Especially suitable fore wire EDM
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
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.2 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 3
Daily Intake on Label Confusing
Label was not clear regarding milligrams per pill. Title label stated 2000mgs per serving (of 4 pills), but “supplement label” states 4 pills is 144 mgs per serving as a 34% of daily value.
Very confusing. Not sure which metric to go by for daily intake.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
★★★★★ 5
Great supplement
I like the way it helps me relax to sleep and helps to keep me more focused
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
★★★★★ 5
No diarrhea
My wife had severe diarrhea using a common type of magnesium, taken at doctor's recommendation. Doctor recommended this type, L-Threonate. Totally eliminated diarrhea problem.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
Magnesium
Helps with sleep, relaxation, and muscle cramps
* Can support mood and reduce stress
* Good for overall body function (nerves, muscles, heart)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
★★★★★ 4
High Quality
My husband is deficient in magnesium and these by far looked like they were of the highest quality . Not sure yet if they help him sleep better but will be purchasing them again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
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