The invention relates to a drill fire extinguishing device (1) having: a tool holder (13) to hold or be connected to a tool; a fluid connection to supply a fluid; a turbine with an impeller that has at least one stage with a plurality of runner blades connected to the tool holder (13) to drive it in a rotary and/or percussive fashion using drive fluid via the fluid connection.

The drill fire extinguishing device (1) also has: at least one discharge opening (20) in a stationary wall (4) of the drill fire extinguishing device (1) communicating with a fluid chamber and/or a nozzle assembly (12) with one or more nozzles (18) in a stationary wall (4) of the drill fire extinguishing device (1) for dispensing the fluid and communicating with the fluid chamber.

The invention also relates to a drill fire extinguishing system and a drill bit.

An air discharge method for pneumatic tool and device thereof, comprising a tool body of a pneumatic tool installed with an air guide element provided with a first air vent hole and a second air vent hole, and a brake element provided with a first air guide hole and a second air guide hole that is mounted and disposed on the air guide element, When using the pneumatic tool, the adjustment element is rotated in a clockwise or counter-clockwise direction to cause the air guide element to cover the first air guide hole of the brake element, which enabling backward discharge of air and preventing dust from flying upward to facilitate drilling operations, or the adjust element is rotated to cause the air guide element to cover the second air guide hole of the brake element, which enabling forward discharge of residual shards to facilitate cutting operations.

An air discharge method for pneumatic tool and device thereof, comprising a tool body of a pneumatic tool installed with an air guide element provided with a first air vent hole and a second air vent hole, and a brake element provided with a first air guide hole and a second air guide hole that is mounted and disposed on the air guide element, When using the pneumatic tool, the adjustment element is rotated in a clockwise or counter-clockwise direction to cause the air guide element to cover the first air guide hole of the brake element, which enabling backward discharge of air and preventing dust from flying upward to facilitate drilling operations, or the adjust element is rotated to cause the air guide element to cover the second air guide hole of the brake element, which enabling forward discharge of residual shards to facilitate cutting operations.

Apparatus for machining a component of a gas turbine engine, the apparatus including: a flexible pipe having a first end and a second end and defining a conduit for receiving a fluid; one or more first actuators arranged to enable the first end of the flexible pipe to be re-positioned relative to the second end of the flexible pipe; a turbine positioned adjacent to the first end of the flexible pipe, the turbine being arranged to receive fluid from the conduit of the flexible pipe; and a tool head coupled to the first end of the flexible pipe, the tool head including: a fastener arranged to fasten to a tool and to receive torque from the turbine.

A hole-making system for making holes on the collar of a cylinder is provided. The hole making system includes a hand unit for making holes on the collar of the cylinder and the hand unit being configured to be used with two hands. The hole making system further includes a control unit configured to control operation of the hand unit. The hole making system further includes a pedal configured to enable a user to control the operation of the hand unit with a foot. The hand unit is held and controlled with two hands and a drilling command is provided by the pedal, allowing the user to control the hand unit in a more reliable manner.

A hole-making system for making holes on the collar of a cylinder is provided. The hole making system includes a hand unit for making holes on the collar of the cylinder and the hand unit being configured to be used with two hands. The hole making system further includes a control unit configured to control operation of the hand unit. The hole making system further includes a pedal configured to enable a user to control the operation of the hand unit with a foot. The hand unit is held and controlled with two hands and a drilling command is provided by the pedal, allowing the user to control the hand unit in a more reliable manner.

A countersinking device includes an internal bore positioner adapted for receipt by a bore defined by a workpiece. A driver rod engaged with the internal bore positioner extends outwardly of the bore through a bore opening. A centering chuck, engaged about and axially movable along the driver rod, is configured to engage the bore opening to cooperate with the internal bore positioner to align the driver rod along a longitudinal axis of the bore. A counterbore is engaged about the driver rod, opposite the centering chuck from the internal bore positioner. The counterbore is rotatable about and is configured to be axially advanced along the driver rod to engage the bore opening and countersink the bore. A countersink depth control arrangement is associated with the counterbore and cooperates therewith to countersink the bore to a predetermined depth. An associated method is also provided.

A countersinking device includes an internal bore positioner adapted for receipt by a bore defined by a workpiece. A driver rod engaged with the internal bore positioner extends outwardly of the bore through a bore opening. A centering chuck, engaged about and axially movable along the driver rod, is configured to engage the bore opening to cooperate with the internal bore positioner to align the driver rod along a longitudinal axis of the bore. A counterbore is engaged about the driver rod, opposite the centering chuck from the internal bore positioner. The counterbore is rotatable about and is configured to be axially advanced along the driver rod to engage the bore opening and countersink the bore. A countersink depth control arrangement is associated with the counterbore and cooperates therewith to countersink the bore to a predetermined depth. An associated method is also provided.

There are provided a tool and an auxiliary tool that can perform drilling and countersinking at a time to improve working efficiency while securing not only machining accuracy of the drilling but also machining accuracy of the countersinking, by using a tool including drills usable for both of the drilling and the countersinking. A tool including drills usable for drilling and countersinking, includes: a head configured to guide the drills and to hold a workpiece; a linear motion mechanism configured to relatively move the head relative to the drills with a predetermined stroke along with progress of machining by the drills; and a stopper configured to regulate displacement of the head guiding the drills in the machining by abutting on a reception portion at a terminal end of the stroke.

According to one implementation, a tool feeding mechanism for a handheld tool rotating device, having a holder and a first air motor, includes a coupler, a fixing member, a moving mechanism and a second air motor. The holder chucks and holds a rotating tool. The first air motor rotates the holder. The tool feeding mechanism is attached to the tool rotating device. The coupler is attached to the tool rotating device. The fixing member is attached directly or indirectly to a workpiece of hole processing using the rotating tool. The moving mechanism moves the coupler relatively to the fixing member in a tool axis direction. The second air motor powers the moving mechanism.