1911 GM Plunger Staking Tool Free (Polygon mesh 3D model) is available on CGTrader for free. Original author: bob-clark.
STL (Stereolithography, filesize: 381 KB), STP (STEP, filesize: 693 KB), IAM (Autodesk Inventor, filesize: 15.9 MB), DWG (AutoCAD, filesize: 7.97 MB)