New Precision 24PC ER40 Collet Set Milling Lathe -US. Gripping Range :3MM to 26MM.Made of high grade specially formulated spring steel. Built in self-Release design and tools will never get stuck in holder. High Grade 1065 Carbon Steel. High Grade 1065 Carbon Steel Hardened & Precision Ground. The item "24pcs ER40 Spring Collet Set 3-26mm For CNC Milling Lathe Tool SN4" is in sale since Thursday, April 23, 2020. This item is in the category "Industrial\CNC, Metalworking & Manufacturing\Workholding & Toolholding\Workholding\Chucks\Collet Chucks". The seller is "sningau" and is located in . This item can be shipped worldwide.