A cutting tool for undercutting a bore in a component includes a shaft portion and at least one tangentially and axially cutting portion. The shaft portion extends in an axial direction relative to the component and has a maximum shaft radius. The cutting portion projects radially with respect to the shaft portion further than the maximum shaft radius. Each cutting portion includes a tangentially arranged lateral cutting edge configured to form a tangentially extending groove in the component. At least one cutting portion has a front cutting edge arranged axially at a front end thereof and configured to form an axially extending groove in the component.

A center locator is operated with a hole center for enlarging a round opening and includes a center seat having a through hole centrally defined therein, wherein the through hole is adapted to allow a centering drill of the hole cutter extending through the center seat. At least one adjusting device is longitudinally mounted to the center seat and formed with an engaging portion, wherein the at least one adjusting device is expandable relative to the center seat for adjusting a distance between the engaging portion of the at least one adjusting device and a center of the center seat.

A bottom cutting step up reamer incorporates a shaft having a first end with attachment features adapted to be received in a chuck. A plurality of bottom cutting edges substantially perpendicular to the shaft are located at a second end distal from the first end. At least one step up land is provided proximate the plurality of bottom cutting edges and spaced toward the first end with a plurality of parallel cutting edges substantially parallel to the shaft.

One aspect of the disclosure relates to a cutting tool for forming a final opening in a stack that includes at least two layers and a pilot opening having a pilot-opening dimension and extending through at least one of the at least two layers. The cutting tool includes a shank. The cutting tool also includes a first portion including at least one of a first coating or the first coating and a second coating, wherein the first coating at least partially covers the first portion. The cutting tool also includes a second portion between the shank and the first portion, wherein the second portion includes the second coating, and wherein the second coating at least partially covers the second portion.

A reamer includes a shank, a washer, a ring and a blade. The shank is a polygonal rod and includes an annular groove made in a periphery and a bore made in an end. The washer includes a slot. The ring includes a circular opening. The blade includes an insert inserted in the bore through the slot and the circular opening. The circular opening is made of a diameter larger than a width of the blade to allow the blade to rotate relative to the ring.

A boring tool includes a clamping shaft and a boring body. Between the end face of the boring body and the clamping shaft, at least one main blade extends along a longitudinal axis of the boring body and includes a blade web with a rake face facing a groove-shaped chip space, and a free surface on the outer circumferential side, these converging at a cutting edge which runs along the boring body longitudinal axis and which removes material on an inner wall of a pre-bored workpiece core bore hole as a result of said boring tool being rotated. The main blade extending along the longitudinal axis of the boring body transitions at the end face, of the boring body into a groove blade that is aligned transversely to the longitudinal axis of the boring body. This groove blade allows the boring tool to be displaced, prior to removing the material by rotation, into the core bore hole in an axial lifting motion such that a groove is formed which extends along the longitudinal axis of the core bore hole, the main blade of the boring tool engaging in this groove.

A bottom cutting step up reamer incorporates a shaft having a first end with attachment features adapted to be received in a chuck. A plurality of bottom cutting edges substantially perpendicular to the shaft are located at a second end distal from the first end. At least one step up land is provided proximate the plurality of bottom cutting edges and spaced toward the first end with a plurality of parallel cutting edges substantially parallel to the shaft.

A Case Length Trimmer (CLT) combines three cutting features in a single hand tool with independent micro adjustability. The CLT operates to cut a ammunition casing to an overall length and chamfers the inside and outside case mouth diameters. Customization with multiple pilots and flash hole pin sizes maintain a consistent cut. The CLT uses these components to set actual overall case length for accuracy. The CLT can also utilizing a Micro-Adjustment Tool (MAT) for allowing precision adjustment of each parameter. These tools are can be used by individually and collectively adding a new level of consistency and precision to ammunition reloading.

A body of a hole machining tool includes a main body part formed in a cylindrical shape, and a guide part provided on a peripheral part of the main body part, in which the guide part has a holding groove formed in the main body part and a rolling element accommodated so as to be rollable in the holding groove.

A drilling apparatus and method for forming a countersunk hole into a structure. The drilling apparatus may include a drill motor housing assembly, a rotor/spindle assembly, a countersink cage, and a countersink cutter. The drill motor housing assembly may have an inlet air duct, the rotor/spindle assembly may have a first duct and the countersink cage may have a second duct. The countersink cutter may have a plurality of flutes formed into a cutting end thereof. The countersink cutter may also have a third duct formed therethrough and a plurality of exit ducts common with the flutes. Each duct of the drilling apparatus may be fluidly coupled such that inlet air may be forced through the inlet air duct, through the first duct, through the second duct, through the third duct, and then through the plurality of exit ducts during drilling via the drilling apparatus.