A debris ejector for a drilling tool is disclosed. The ejector may be provided as part of a tool assembly where the ejector is coupled with bit. In an example, a tool includes a cup and a drill bit passing through an internal void of the cup. The cutting end of the bit extends out the open end of the cup at a fixed distance, while an attachment end of the bit extends out the back of the cup. The tool further includes an ejector within the cup. The ejector spins with the bit and independently of the cup. In one example, the ejector includes ramped or angled wings that eject material within the cup. In another example, the ejector includes tapered wings with straight and/or angled walls that push material out of the cup through one or more holes of the cup.

A combination tool including a tool holder that extends along a tool rotational axis that defines an axial extension, an inner cutting tool for machining a first, central hole region and an outer, sleeve-shaped cutting tool for machining a second hole region radially outwards relative to the first hole region.

A drill includes a body. The body includes a first cutting edge, and a second cutting edge apart from the first cutting edge to the back end side relative to the first cutting edge and formed in a recess traversing an outer peripheral portion of the body. In a side view of the body in a first direction in which a distance between a center axis of the body and a first outer end of the first cutting edge is seen the longest, a second outer end of the second cutting edge is located at the center axis side relative to the first outer end of the first cutting edge.

A rotary tool may include a body having a first part, a second part, a third part, a first cutting edge located at a first end, a flute extending from the first cutting edge toward a second end, and an outer peripheral surface. The outer peripheral surface in the third part may have a first portion. The third part may have a land face, and a second cutting edge located on a ridge line where a first portion and the land face intersect. The land face may have a first region in which a width increases from a side of the first end toward a side of the second end, and a second region that is located closer to the second end than the first region in which a width decreases from a side of the first end toward the second end.

An apparatus and method are provided for integration of drilling and interference-fit pin insertion. The apparatus includes a station switching module, a spindle module, and a pin insertion module. The station switching module is configured to drill and countersink a panel connecting hole. The pin insertion module is configured for interference-fit pin insertion of a hi-lock bolt. Hence, by using the apparatus, after the drilling of a hole to be drilled is completed, the station switching module is rotated by a fixed angle so that station states of the spindle module and the pin insertion module can be switched, the interference-fit pin insertion of the hi-lock bolts can be completed, and the anti-fatigue property and assembly efficiency can be improved.

Provided is cutting tool. The tool, in certain examples, includes a drill body that defines a drill axis, and a tool window formed in the drill body. The tool also includes a drill bit extending from the drill body, and a material reworking attachment (MRA) coupled to the drill body and storable within the tool window. The MRA is extendable from a stored position into either a surface-finishing position or a material-removal position. The MRA includes a first chamfering blade, a second chamfering blade, and a finishing surface interposed between the chamfering blades. The tool also includes a position manager to detect a position of the cutting tool with reference to a workpiece, and an actuator to transition the MRA from the stored position to the material-removal position, followed by a transition to the surface-finishing position, and followed by a transition to material-removal position.

A self-aligning counter bore cutting tool and method detachably attaches to a drill, and is rotatably driven by the drill, so as to cut a counter bore into a subfloor. The cutting tool includes an annular frame that has unique arm slots for retaining a plurality of cutting blades in a fixed position while rotating and cutting. A plurality of fastening blocks work to securely retain the blades in the arm slots. At least one oversized depth restriction frame extends beyond the blades to restrict the blades from cutting the counter bore beyond a predetermined depth. The frame includes a protruding shaft bushing that securely receives a drill chuck from the drill to create a secure, aligned coupling to the drill. The shaft bushing also aligns the blades with a mudsill fastening plate in the subfloor, so as to create a concentric counter bore at the appropriate depth in subfloor.

Disclosed is a combination tool having a plurality of cutting elements. According to one embodiment, the combination tool comprises a drilling portion, a milling portion, and a boring portion. In this embodiment, the combination tool may perform a drilling operation, a milling operation, and a boring operation in quick succession with a single cutting tool. In another embodiment, the combination tool includes an additional cutting element such as a chamfering portion, which may perform a countersinking operation.

A drill bit with chamfering function has a body, a chamfering blade, an abutting rod, an elastic element, an adjusting element, and a drill bit. The body is a hollow tube, and has an internal space, a blade opening, a pivot segment, and a connecting end. The chamfering blade is pivotally connected to the body, selectively extends out of the blade opening, and has a blade portion, a blade pivot portion, and an abutting portion. The abutting rod is disposed in the internal space and abuts against the abutting portion. The elastic element is disposed in the internal space and is compressed between the abutting rod and the adjusting element. The adjusting element is disposed in the internal space for adjusting an amount of compression of the elastic element. The drill bit is securely connected to the connecting end of the body.

In one embodiment, a system includes a counterbore drill bit, pre-cut lead rods of predetermined length, and a tapper tool. The counterbore drill bit includes a stop collar to drill counter bored holes with a first hole portion having a first diameter to a first depth below a surface of a material and a second hole portion having a second diameter less than the first to a second depth below the surface. The lead rods are inserted into the counter bored holes. The tapper tool mashes the second end of each lead rod in the one or more counterbored holes to expand and friction fit then in the counter bored holes. The system further includes circular survey tags insertable into the first hole and fasteners with a head and a shaft insertable through a center hole in the survey tags to retain the tags coupled to the lead rods.