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 centred
Versatile fit works with all arbours
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
MFG NOTE
Please note the hole saws pictured in the second image are not included with the Co-Pilot.