GodHand Spin Blade 1.1mm-1.4mm

Set of 4: 1.1mm/1.2mm/1.3mm/1.4mm

You can make a flat bottom hole by drilling with Spin Blade!
Not only for making flat bottom hole, but also can use as precision chisels
from 1.1mm to 1.4mm diameter in diameter.

*When you use Spin Blade for drilling a hole, ensure that making a pilot hole with a drill of same diameter first.