I think it is a a fixture for holding a cutting tool. It has a 3 jaw lathe chuck. The pictures show all that is included and the condition so please look close. Please see my other auctions for more tools items from a local estate. I tried to take photos of the parts that came with it. PLEASE SEE THE PHOTOS FOR THE BEST DESCRIPTION. PLEASE KNOW THAT I TRY TO SATISFY ANY AND ALL OF MY CUSTOMERS. I ANSWER ALL EMAILS AND WILL TRY TO WORK WITH YOU AS BEST I CAN. I WILL, HOWEVER, NOT BE BULLIED OR BLACKMAILED. The item “MACHINIST TOOLS LATHE MILL Machinist Hand Digital Tachometer Gage Gauge DT 107″ is in sale since Monday, July 24, 2017. This item is in the category “Business & Industrial\CNC, Metalworking & Manufacturing\Metalworking Inspection & Measurement\Inspection Gages”. The seller is “gigigirl111″ and is located in Morris Plains, New Jersey. This item can be shipped worldwide.