Technical Information技術的な案内
Removing a stuck bit
Three steps to free a bit without damaging it.
- Step 1
Disconnect the core drill machine from the core bit.
- Step 2
Thread a threaded rod of the same diameter as the bit thread (5/8-11 or 1-1/4-7) through the hub until it touches the concrete. Lock two hex nuts against each other on the rod.
- Step 3
Turn the nuts with a wrench. The rod pushes against the concrete core and pulls the bit out of the hole without damage.
Source: Shibuya Overview Catalogue, Technical Information.