Does anyone use aftermarket bt30 er20 tool holders? I need to stretch the clams a bit.
Where can I get good aftermarket tool holders? And they need to work with the atc.
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Key specs to look for are single contract holders and 45deg pull studs.
Among others, we have used https://www.maritool.com/
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Maritools are very good IME. HAAS has some (imported/rebranded) BT30 holders and studs that I also use, although IDK if they have ER20. They’re always running sales, although less of the crazy discounts these days. I do prefer the Maritools. Only downside to the MT & HAAS is they do rust if ignored.
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I’ve used both Tormach and various styles from Shars and Maritools. I haven’t notice any issues with any of them. I try to stay away from bargain basement stuff. So far I’ve been pleased with the quality and accuracy of all three vendors.
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I’ve gotten a few from Ali Express and have been satisfied with them. I don’t recall the exact runout numbers when i checked, but they were within a few tenths.