Bridgeport Quill Master JA No cracks in Clamp or anywhere on unit, good paint Will use either 1/2 inch collet or 1/2" tool holder to drive the unit hence the hole in the side for tightening set screw in the 1/2" shank tool holder. Thanks for looking No reserve!!! This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Metalworking Equipment\Machining Centers & Milling Machines". The seller is "trivettes_gunsmithing" and is located in this country: US. This item can be shipped to United States.