Core drill bit extensions for increasing drilling depth. Available in 6", 12", and 18" lengths with 1-1/4"-7 or 5/8"-11 thread options.
Extend your reach when drilling through thick walls, floors, or foundations. Precision-machined threads ensure a secure, wobble-free connection between your core drill and bit.
UPS Shipping: 1-4 Days
*excludes all equipment
