These are used on Bridgeport's, milling machines and lathes. Also included are 3-6 Craftsman scales, all have 4 graduations. 1-has groove to be used with combination square heads.All tools are used and in good working condition. Please contact me with any questions. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Metalworking Inspection & Measurement\Indicators". The seller is "hemi_blown" and is located in this country: US. This item can be shipped to United States.