A dust collector for use with a power tool comprises a housing, a telescoping suction pipe coupled to the housing, a suction fan positioned in the housing and operable to generate a vacuum in the suction pipe, a dust container coupled to the housing and positioned upstream of the fan, a filter at least partially arranged in the dust container, and a filter cleaning mechanism. The filter cleaning mechanism includes an anvil, a striker moveable between a first striker position, in which the striker is spaced from the anvil, and a second striker position, in which the striker is in contact with the anvil. The filter cleaning mechanism further includes an actuator moveable between a first actuator position and a second actuator position, in which the actuator is moved closer to the anvil than in the first position, and a first spring biasing the striker toward the anvil.

A boring tool has a cutting insert, a holder, and a pressing member. The cutting insert includes a base member and a cutting member. The base member includes a first side surface, a second side surface, a third side surface, and a fourth side surface. The holder includes a front end surface, a rear end surface, and an outer peripheral surface. The holder is provided with a first hole and a second hole. The first hole is opened in the front end surface. The second hole is opened in the outer peripheral surface. The holder includes a stopper. A surface defining the second hole includes a first inner side surface and a second inner side surface. The pressing member is in contact with the fourth side surface in a state in which the pressing member is disposed in the first hole.

This disclosure relates to a machining tool having a base body which is rotatable about a rotary axis and movable in a feed direction along the rotary axis, at least one cutting element which is fixed on the base body and has a front cutting edge pointing in the feed direction, and a flute associated with the cutting element and formed by a recess in the base body. In order to control the chip flow, according to this disclosure, a flute cover mounted on the base body is proposed, which outwardly covers a chip removal area of the flute adjoining the cutting element.

A precision pneumatic drill spindle and method provides reduced spin axis error and increased rate of forming holes in a microelectronic substrate. The spindle includes a press-fit collar that accepts drill bits and incorporates turbine blades around the collar, which is rotated by directing pressurized air through a number of nozzles distributed around the collar within a housing of the spindle. The collar is supported by air bearings above and below the collar. The turbine blades may be provided by concavities in the collar forming a Pelton wheel type rotation system that concentrates the air flow to improve energy transfer from the pressurized air directed by the nozzles to the collar, increasing the rotation rate of the collar. Exit air may be directed downward toward the tip of the drill bit by inclined channels within the lower air bushing assembly, improving the debris removal rate.

A cutting tool for performing cutting of a relatively rotating external workpiece while relatively feeding the same in a specified direction is configured to have: cutting sections that have a tool edge, a base section, which is provided as one piece with or separate from the cutting sections and is for holding the cutting sections, a chip-guiding wall, which starts near a tool edge, is formed on the outer circumferential surface of the base section so as to extend in the direction moving away from the tool edge, and is for interfering with chips from the external workpiece and guiding the chips in a direction away from the tool edge. Provided thereby is a cutting tool capable of smoothly discharging chips during cutting.

A drill removal device is provided for use with a scratch generating tool having a stationary member and a scrap generating workpiece engaging member that is moveable with respect to the stationary member. The debris removal device includes a bracket having a stationary member receiving portion for coupling the bracket to the power tool stationary member. A vacuum receiving portion of the bracket is provided for coupling the bracket to a vacuum source, and a passageway portion is provided for placing the stationary portion in fluid communication with the vacuum source. A variable tube bellows is configured for placement adjacent to the workpiece engaging member. The bellows includes a plurality of bi-stable pleats that are moveable between and stationarily positionable in each of an expanded position and a compressed position for permitting the user to vary the length of the bellows between, and fixedly positioned the length of the bellows at a plurality of different lengths.

The invention relates to a tool (1) for machining a workpiece (3), said tool having a longitudinal axis (L), wherein the tool (1) comprises a first machining region (5) and a second machining region (7), wherein the first machining region (5) is spaced apart from the second machining region (7) along the longitudinal axis (L), and wherein a chip protection barrier (9) is located between the first machining region (5) and the second machining region (7), said chip protection barrier being designed to prevent chips removed from a workpiece (3) from passing from one machining region (5, 7) selected from the first machining region (5) and the second machining region (7) into the other machining region (7, 5) selected from the second machining region (7) and the first machining region (5).

A machine tool capable of facilitating a process of mounting a fluid supplying unit to a spindle supporting unit is provided. The machine tool has a rotating unit including a spindle provided with a workpiece chucking unit, a supporting unit which rotatably supports the spindle around a spindle axis, and a fluid supplying unit removably mounted on a rear end of the supporting unit to allow fluid flow inside the spindle toward the chucking unit. The fluid supplying unit has an insert to be received in the rotating unit in the direction of the spindle axis. A labyrinth clearance is formed between the outer circumferential surface of the insert and the inner circumferential surface of the rotating unit when the fluid supplying unit is mounted on the rear end of the supporting unit. The labyrinth clearance allows rotation of the rotating unit and restricts leakage of the supplied fluid from inside the spindle when the rotating unit is rotated.

A hole cutter assembly is operable to cut a plurality of different sized diameter holes in a work piece. The hole cutter assembly includes an arbor configured to connect to a power tool for rotation about an axis, a drill bit coupled to the arbor for rotation with the arbor, a first arm moveable relative to the axis, a first cutting blade coupled to the first arm and moveable with the first arm, a second arm moveable relative to the axis, and a second cutting blade coupled to the second arm and moveable with the second arm. The first and second cutting blades are selectively moveable relative to the axis to adjust a cutting diameter of the hole cutter assembly. The drill bit engages the first and second arms to inhibit movement of the first and second cutting blades relative to the drill bit.

A drilling attachment device for particle collection. The device has a bell-shaped housing designed to be attached to the front of an electric drill. The housing is transparent and is releasably attached to the torque collar of an electric drill using a clamp and thumbscrew. The device is used to collect and contain dust and debris while drilling into various materials providing both safety and convenience benefits.