Orthopedic systems and methods for installing an implant and/or boring a bone bicortically. The system may include a drill having a proximal boring portion configured to bore a larger hole in a bone more efficiently when the drill rotates in a first direction compared to an opposite second direction, and a distal boring portion configured to bore a smaller hole in the bone more efficiently when the drill rotates in the second direction. The implant may be configured to be implanted at least partially in the bone, such that a first region of the implant is located in the larger hole and a second region of the implant is located in the smaller hole. In an exemplary method, the larger hole and the smaller hole may be bored in the bone's near cortex and far cortex, respectively, by a shaft and a nose of the drill rotated in opposite directions.

Tools and methods for creating a plurality of aligned holes from a plurality of near full-sized holes. The tool includes a cutting member having a first diameter and a pilot member connected to and coaxial with the cutting member. A first section of the pilot member includes a centering member and is positioned between the cutting member and the second section having a second diameter. The centering member may include a cutting surface. The second diameter corresponds to a positional tolerance of misalignment of a plurality of near full-sized holes of the same diameter and a full-size hole diameter. The centering member may have a third diameter between the first and second diameters. The centering member may be tapered. The pilot member may be inserted into a plurality of near-full sized holes and the cutting member may cut through the holes to form a plurality of aligned full sized holes.

The drill head (2) extends along a rotational axis (24) in the axial direction (22) and has a central area (6) on the front with first main cutting edges (26), an intermediate area (8) connecting thereto, and an outer area (10) in turn connecting thereto with second main cutting edges (30). The intermediate area (8) in this case expands in the axial direction (22) toward the outer area (10) and in particular forms an expanding conical shell. A centering effect is hereby achieved via the intermediate area (8).

A safety drilling tool having a tapered drill bit that drills through materials, such as metal, without producing any torque or heat is provided. The safety drilling tool may provide safety for the operator of the tool while drilling or cutting into electrical/electronic enclosures, such as switchgear. The bit may include a smooth graduated cam on the cutting portion eliminate the usage of steps as is the conventional practice in the art. The drill bits may be different sizes to reduce the bulkiness for sake of convenience. The bits may have a one or more internal helical flutes for pushing the debris through the hole being drilled. The hole saw portion of the bit draws the material into the center of the bit until the initial hole is made allowing the debris from the tapered bit to flow through hole being drilled.

The hole saw with threadably removable portion is an improved hole saw that includes a removable portion that is able to slide back and forth with respect to an outer drill bit. The outer drill bit includes internal threadings along an inner surface, which correspond with external threadings provided on an outer surface of the removable portion. When the hole saw has bored a hole into an object, a core remains inside of the outer drill bit. The rotation of the drill rotates the removable portion with respect to the outer drill bit in order to push the core out of the outer drill bit. The outer drill bit includes a shoulder, which works in concert with the removable portion so as to lock the components together when in use as a hole saw.

Apparatus, systems, and methods for forming a plurality of aligned holes from a plurality of misaligned holes. The apparatus includes a reamer with a constant diameter a first portion and a tapered second portion. A constant diameter pilot member is connected to the reamer. The taper may be configured to center the reamer and reduce an offset between the apparatus and a centerline of a virtual hole created by the misaligned holes. The constant diameter of the pilot member corresponds to the virtual hole and the constant diameter of the first portion of the reamer correspond to a cleanup hole configured to accept an oversize fastener and fully encompass the misaligned holes. If the pilot member cannot pass through the misaligned holes, an apparatus with a smaller diameter pilot member and a larger diameter reamer is needed to create a cleanup hole that fully encompasses the misaligned holes.

An auger includes a body having a first end, a second end opposite the first end, a stem that extends from the first end to the second end and defines an axis of rotation, and a flute helically wrapped around the stem. The auger also includes a shank at the first end of the body configured to be received by a power tool and a cutting head at the second end of the body. The cutting head includes a cutting edge, a spur, a feed screw with a thread, and a cutting face positioned adjacent the cutting edge. The cutting head defines a step at an interface with the body, and wherein the cutting head has a maximum diameter that is greater than a maximum diameter of the body.

A drill bit in conjunction with a hammer-drill to penetrate composite metal and non-metal structure or structures including, for example, thick metal or rebar encountered during concrete, rock or masonry boring operations without requiring a change in drill equipment.

A drill bit in conjunction with a hammer-drill to penetrate composite metal and non-metal structure or structures including, for example, thick metal or rebar encountered during concrete, rock or masonry boring operations without requiring a change in drill equipment.

A drill bit, e.g., a serpentine drill or an auger bit, includes a circumferential chip removal groove helically about a drill axis and a centering tip having a conical shape with an apex on the drill axis. The centering tip has a lateral cone surface that has a taper angle with a centering tip helical thread which spirals helically from the apex down the centering tip in a thread direction of rotation at a tip thread pitch. At least one tip recess is included in a side of the centering tip which provides a cutting edge, and which has a chip transporting shape and connecting to the circumferential external thread. The cone surface includes at least one step in the taper angle of the lateral surface with each step starting at a step-start position and the at least one step continues about the drill axis at least 90 degrees.