Bracket and clamp you are buying fits most many classic American drill presses.  Fits anything with a 2.25" OD column.  Common size for table top models.  Requires you to install a snap ring as shown.  You supply your own snap ring tool.   Not necessary to remove head stock to install.  Has clamping mechanism allowing easy height adjustment.  Keep drill bits, chuck key countersinks and center drill hand on the drill press.  Actual item purchased in photo 4 with my hand (hand not included).  ;-)

Photo Key:

1: Tray (Tray is 1/8th sheet cooking tray available at Walmart) being held by bracket you are buying shown from operators view point.  Only the bracket is being offered, all other items are props to show fit and function.

2: Tray viewed with full size fractional index and oil can.  Bracket only, all other items are props and not included.

3:  View of tray side of bracket.  The item being offered for sale.

4: View of actual item you are purchasing.  shown front views.  (Yes, you can put the tray on right if you turn bracket around.)
5:  1/8 sheet tray you need to pick up at Walmart to clip into my bracket.

6:  Fit parts onto your column
7: Adding snap ring.  This nifty setup means you can install without taking your drill press apart.

Not shown.  Drop barrel bolt into vertical hole.  You may need a screwdriver to keep it from falling through and help align as you start the threaded handle into the nut.  Only snug clamp. Excessive tightening is not necessary.  Lots of grip on your 2.25" OD column (69.85mm).

What you are buying is the gray additive manufacturing central column clamp which holds the tray and related hardware.  The tray is available at Walmart for approximately $6.  It's an 1/8 sheet baking pan.  These come in both aluminum and anodized gold for about the same price.  This kit is nicer than anything else available at any price.  Please understand, it requires about 7 hours of machine time to make plus materials and hardware.  Then I have to do several post processing steps including reaming holes, installing hardware and removing burrs from edges.  And the shipping is included.   ;-)