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1 ER20 Spring Collet. Collet must be assembled into the clamping nut before inserting into the chuck. boring, milling, reaming, tapping and grinding. A=31.8mm B=24.2mm C=20.2mm D=12mm. We will much appreciate it and try to improve our service.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.