Hole reamer

Details Hole reamer Hole reamer

E - Fixed Constructions

21

B

255/75

E21B 10/00 (2006.01)

Patent

CA 1063096

HOLE REAMER ABSTRACT OF DISCLOSURE A hole reamer according to the invention comprising: a main body with roller cutters rigidly connected to the drill stem. An additional support with roller cutters arrang- ed co-axially with the main body. The additional support de- vice can move along the axis of the main body and is provided with a means to effect this longitudinal movement. The main body and additional support device are adapted to drill holes of one diameter with consequent reaming thereof.

253783

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