Tom Caspar, Master Woodworker - Shop myth? To avoid a bit slipping in a drill press chuck, you must tighten the chuck using all three holes. The chuck has three jaws, after
Power Tools Parts heavy duty 1/2" drill chuck fits rockwell 11-280 drill press
Mini Electric Drill Chuck Angle Grinder Drill Chuck With Key Lathe Accessories Fastening Without Slipping High Precision - Tool Parts - AliExpress