A guide for use with a hole saw. Holds the blade firmly in place and prevents it from wandering when starting to drill. Attaches to surfaces with a strong suction cup.

The hole saw guide is attached to the surface using a strong suction cup. The hole saw is placed in the opening in the center of the guide, where it is held firmly in place and does not wobble by the bearing-mounted rollers in the guide.

The same guide can be used for all blades from 4mm up to 90mm by turning the guide's back plate the other way around and removing the guide rollers.