Co-Pilot -arbor attachment -hole saw

Tired of your pilot bit dancing around inside an existing hole you are trying to expand upon? The Co-Pilot bit allows you to stack two hole saws on top of each other utilizing the smaller hole saw as the pilot bit it slips perfectly into the existing hole.Features: Enlarge an existing hole while keeping the hole saw centered Versatile fit works with all arbors Can be used for wood plastic and drywall (limitations set by hole saw) Small enough to fit in most hole saw kits Accompany with the dust bowl for a mess free result.