A useful DIY tool made from a bolt
How to make a special tool for cutting precise radii from a regular bolt. How to make a coffee-pistachio handle out of epoxy resin using a 20ml syringe.
EP25 square - https://ali.ski/QbuEjv
EP25 hex - https://ali.ski/RuXwi
Drill with 18650 battery - https://ali.ski/stSY6
Diamond bits up to 30mm - https://ali.ski/yVRlg