3 pcs BT40-ER20 collet chucks, 100mm longer gage length. Precision Dynamic Balanced to G6.3/12000RPM. The item "3pcs BT40-ER20-100mm COLLET CHUCKS balanced to G6.3/15000RPM Tool Holder Set" is in sale since Wednesday, August 5, 2015. This item is in the category "Business & Industrial\Manufacturing & Metalworking\Metalworking Tooling\Toolholding\CAT Holders".The seller is "niuniucme" and is located in Madison Heights, Michigan. This item can be shipped worldwide.