[pic. Guide Roller from GT-100BM]

Most beveling tools have a problem caused by bearings in a guide.
the bearings are easy to miss or brake because of various reasons such as heavy vibration, sharp or hardened surface by laser cutting.
However, there is no bearings in the guide part of GT-100B series & GT-100BM and we have a patent with this design.
Chamfo makes you free from this headache problem.