This is a gridfinity compatible 4x1 which fits inside the drawer designed for the AMS Riser V2. It will also of course fit any other gridfinity that doesn't have the height restrictions as the drawer.

Designed specifically to fit this de-burring tool from amazon so you will need the same style/model [https://www.amazon.co.uk/Deburring-Deburrer-Rotatable-Remover-Aluminum/dp/B082SL8QHZ/ref=asc_df_B082SL8QHZ/?tag=googshopuk-21&linkCode=df0&hvadid=697316866997&hvpos=&hvnetw=g&hvrand=8090646663370418660&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9045379&hvtargid=pla-863534034958&psc=1&mcid=bcd52d1efe2e3bb8bf03972d9441c016&tag=googshopuk-21&linkCode=df0&hvadid=697316866997&hvpos=&hvnetw=g&hvrand=8090646663370418660&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9045379&hvtargid=pla-863534034958&psc=1&gad_source=1](https://www.amazon.co.uk/Deburring-Deburrer-Rotatable-Remover-Aluminum/dp/B082SL8QHZ/ref=asc_df_B082SL8QHZ/?tag=googshopuk-21&linkCode=df0&hvadid=697316866997&hvpos=&hvnetw=g&hvrand=8090646663370418660&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9045379&hvtargid=pla-863534034958&psc=1&mcid=bcd52d1efe2e3bb8bf03972d9441c016&tag=googshopuk-21&linkCode=df0&hvadid=697316866997&hvpos=&hvnetw=g&hvrand=8090646663370418660&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9045379&hvtargid=pla-863534034958&psc=1&gad_source=1)

holds 12 additional tips and all fits snugly inside the drawer.