ThisAdjustable Hole Cutteris widely used for opening holes in wood, plastic board, gypsum board, PVC sheet, glass, porcelain, etc. The tungsten carbide blade can be adjusted from 30-200mm. ThisAdjustable Hole Cutteris suitable for any variable speed drill, it even comes with a round-tipped bit for lower RPM usage.
Adjustable Hole Cutterhas 2 adjustable blades that can be adjusted for a wider range of hole diameter.
Make sure the blades are equally adjusted before drilling or else the force will be uneven.
Adjust to the required size, be sure to use the hex wrench to tighten the screws.
Please don't use on steel sheet or other metal.
The speed of drilling must be slow, and the material of drilling does not contain iron, nails or other metal.