Size 3/8 in, Collet Type ER16, For Shank Type Straight. From floor to ceiling and front to back, Zoro is about you and the supplies you need to run your business. Since our humble beginnings with 20 employees in 2011, to our current staff of over 300 people, Zoro remains committed to one thing: making your job easier. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Workholding & Toolholding\Workholding\Other Workholding". The seller is "zoro_us" and is located in this country: US.This item can be shipped to United States.