Abstract: A hole opener includes a shaft including a plurality of axial slots formed in an outer periphery and spaced circumferentially about the shaft, a plate coupled to the outer periphery between each pair of slots, the plate including fastening wings that extend radially outwardly from each circumferential end of the plate, and a blade extending radially outwardly from a respective one of the plurality of axial slots between a fastening wing of each of adjacent plates, the blade coupled to each fastening wing.

Abstract: A method and system for a hole opener are provided. The hole opener includes a shaft including a plurality of axial slots formed in an outer periphery and spaced circumferentially about the shaft, a plate coupled to the outer periphery between each pair of slots, the plate including fastening wings that extend radially outwardly from each circumferential end of the plate, and a blade extending radially outwardly from a respective one of the plurality of axial slots between a fastening wing of each of adjacent plates, the blade coupled to each fastening wing.

Abstract: A method and system for a hole opener are provided. The hole opener includes a shaft including a plurality of axial slots formed in an outer periphery and spaced circumferentially about the shaft, a plate coupled to the outer periphery between each pair of slots, the plate including fastening wings that extend radially outwardly from each circumferential end of the plate, and a blade extending radially outwardly from a respective one of the plurality of axial slots between a fastening wing of each of adjacent plates, the blade coupled to each fastening wing.