Hole cutting assembly for pipes and well casings

A hole cutting assembly adapted for cutting cylindrical conduits comprising:

• a base member including a center portion and opposed, parallel wall portions extending perpendicularly in a common direction from the center portion, the base member including a first V-shaped contact section secured between first ends of each wall portion and a second V-shaped contact section secured between second ends of each wall portion;
• a linear base anchoring member adjustably secured at a first end to one wall portion and at a second end to the other wall portion, the anchoring member adapted for encircling a cylindrical conduit and drawing the conduit against the V-shaped contact sections of the base member;
• a support plate member extending perpendicularly from the base member in opposition to one V-shaped contact section;
• a bearing housing member secured to the support plate member, the housing member including a cylindrical passage there through with a cylindrical axis parallel the support plate member and beyond one end of the base member, the housing member including at least two bearings within the cylindrical passage;
• a cylindrical arbor shaft member rotatably and slidably mounted within the housing member's cylindrical passage, the shaft member including a threaded end adjacent the base member and a hexagonal end opposite the base member, the shaft's threaded end adapted for securing a cylindrical cutting bit member thereto;
• and
• a planar guide member extending perpendicularly from the support plate member adjacent the opposed V-shaped contact portion, the guide member including an aperture therein aligned with the cylindrical arbor shaft member, the aperture sufficiently large to accommodate a cylindrical cutting bit member fastened to the arbor shaft member;
• whereby securing the hole cutting assembly to an outer surface of a conduit with the base anchoring member, and attaching a power drill to the arbor shaft member's cylindrical end provides rotation of the cylindrical cutting bit member secured to the threaded end of the arbor shaft member, thereby cutting a hole in the conduit.

A hole cutting assembly adapted for cutting cylindrical conduits comprising:

• a base member having first and second V-shaped contact sections at opposite ends thereof;
• a linear base anchoring member secured to the base member, the anchoring member adapted for encircling a cylindrical conduit and drawing both V-shaped contact sections of the base member against an outer surface of the cylindrical conduit;
• a support plate member extending perpendicularly from the base member in opposition to one V-shaped contact section;
• a bearing housing member secured to the support plate member, the housing member including a cylindrical passage there through with a cylindrical axis parallel the support plate member, the cylindrical axis positioned beyond one end of the base member, the housing member including at least two bearings within the cylindrical passage;
• a cylindrical arbor shaft member rotatably and slidably mounted within the housing member's cylindrical passage, the shaft member including a threaded end adjacent the base member and a hexagonal end opposite the base member;
• and
• a cylindrical cutting bit member secured to the threaded end of the cylindrical arbor shaft member for cutting a hole in the cylindrical conduit;
• whereby securing the hole cutting assembly to an outer surface of a conduit with the base anchoring member, and attaching a power drill to the arbor shaft member's hexagonal end provides rotation of the cylindrical cutting bit member secured to the threaded end of the arbor shaft member, thereby cutting a hole in the conduit.