BACKGROUND

Hole saws are generally used to make cut-outs, holes and/or openings in materials such as wood, fiberglass, plastic, drywall, etc. Holes saws are generally used with a power drill or other type of rotary power drive unit. Hole saws typically include a saw cup, an arbor and a pilot bit. The saw cup includes a threaded portion to receive a threaded end portion of the arbor. The pilot bit protrudes from the cutting edge of the saw to guide the saw during cutting. The arbor is generally inserted into a chuck of the power drill. The saw body is coupled to the pilot bit for rotation with the pilot bit, and the saw body includes a collection of teeth to form a cutting edge. In operation, the power drill causes rotation of the hole saw, and the drill bit first cuts into a structure to establish a pilot hole to maintain the hole saw concentric to a particular point. The cutting edge of the saw body then cuts a relatively larger opening in the structure.

BRIEF SUMMARY

According to one aspect of the present disclosure, a hole saw saw is disclosed. The hole saw includes a planar base member configured to secure the hole saw to a drive device and a plurality of blade members. Each blade member extends orthogonally from a respective side of the base member, and each blade member has cutting teeth extending in a longitudinal cutting direction of the respective blade member. Each blade member is attached to the base member in a fixed position relative to the base member, and each blade member has oppositely extending, freestanding distal ends. Each blade member is configured to have the respective distal ends of the respective blade member flex transversely to the longitudinal cutting direction of the respective blade member, and wherein an edge of each blade member having the respective cutting teeth extends linearly downward toward the base member as the edge extends toward the respective distal ends. Responsive to rotational movement of the hole saw via the drive device against a structure, a medial location of each blade member creates an initial respective linear cutting path into the structure, and wherein responsive to further movement of the respective blade members into the structure, the distal ends of the respective blade members flex transversely to the longitudinal cutting direction to follow the initial linear cutting path of the respective blade member despite the rotational movement of the hole saw relative to the structure to produce a respective linear cut through the structure corresponding to a length of the respective blade member in the longitudinal cutting direction of the respective blade member.

According to another embodiment of the present disclosure, a hole saw includes a base member configured to secure the hole saw to a drive device and a plurality of blade members where each blade member is connected to and disposed orthogonally to the base member via a respective extender. Each blade member has cutting teeth extending in a respective cutting direction and distances between the cutting teeth and the base member vary along the respective cutting direction of the respective blade members. Each respective extender is configured cantilever support opposite, freestanding distal ends of the respective blade member where each distal end of each respective blade member is disconnected from the distal end of an adjacent blade member.

According to another embodiment of the present disclosure, a hole saw includes a base member and a set of blade members disposed orthogonally to the base member. Each blade member is attached to the base member in a fixed position relative to the base member, and each blade member has an edge with cutting teeth extending in a respective longitudinal direction to a cutting length of a respective one of the blade members. Each blade member has oppositely disposed distal ends, and wherein the distal ends of each blade member are disconnected from the distal ends of a respective blade member of the set and are configured to flex transversely relative to the respective longitudinal direction of the respective blade member. The base member is configured to be coupled to a drive device, and wherein each blade member includes a stabilizer extending along a length of a respective side of the base member and an extender extending from the stabilizer toward the cutting teeth of the respective blade member, the extender having a length in the respective longitudinal direction of the respective blade member less than the respective cutting length.

