Disk saw for cutting tubes at hard to access locations has guide duct which is foldable using a hinge and tube saw is positively driven in guide shaft whereby cutting head of saw and claws are changeable according to tube size

摘要

Tube disk saw has guide duct (1) which is foldable using a hinge (2). A tube saw is positively driven in guide duct. The cutting head of the saw and claws (6) are changeable according to the tube (5) size. The duct has a hinge and a chuck. The duct is firmly bound with the pipe by means of claws. The tube saw is equipped with interchangeable cutting heads. Independent claims are also included for the following: (A) Guide duct; (B) Tube saw; (C) Cutting head; and (D) Spring steel clips.