Excellent straightness! A non-slip blade drill!

Even on curved surfaces, the drill will not slip or move from the initial position, allowing you to easily drill straight holes.
Smooth out the bottom surface with a spin blade of the same diameter and add details with commercially available parts.
By using drill blades, you can easily create details in areas that were previously difficult to create.
Set of 4: 1.0mm, 1.5mm, 2.0mm, 2.5mm
Shaft thickness: unified to 3 mm
Comes with a convenient case for storage and carrying