The MariTool ER20 collet nut holds all ER20 collets and will fit most tool holders regardless of brand. Internal thread isM25 x 1.5 pitch. Made in USA.
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Feb 26, 2021 · ... collet installed into the collet nut properly. ... https://www.maritool.com/Tool-Holders-Spare ... Nuts/c23_30_31/p46/ER20-COLLET-NUT/product_info.