I modified nitronic755's great design to fit the Shinenow 60W heatset/soldering iron from amazon (https://www.amazon.com/dp/B0CJR4Y192?psc=1&ref=ppx_yo2ov_dt_b_product_details) into a Dremel 220 drill press so you can make sure those heat set inserts go in straight!
You'll need the following parts:
(4) M3 socket head bolts
(4) M3 3-4mm OD 4.5mm heat set inserts
Dremel 220 drill press