A device includes a first member having a first surface, and a second member having a second surface that is partially or wholly in contact with the first surface. The first member and the second member are configured to operate relatively. The first member has a flow path of a lubricant that has an opening provided in the first surface.

A workpiece contact element for a fastener driver includes a body defining a fastener receiving region through which fasteners are fed from a magazine of the fastener driver. The body having a base surface parallel with a fastener driving axis of the fastener driver. The workpiece contact element also includes a fastener guiding portion disposed forward of the fastener receiving region and extending in a direction of the fastener driving axis and a tip retainer includes a longitudinal protrusion and a pair of opposed lateral protrusions. The longitudinal protrusion extends from a forwardmost end of the body, and the opposed lateral protrusions are position on opposite lateral sides of the body adjacent the forwardmost end. The fastener guiding portion includes a platform extending above the base surface of the body and spaced rearwardly from the forwardmost end of the body.

A workpiece contact element for a fastener driver includes a body defining a fastener receiving region through which fasteners are fed from a magazine of the fastener driver. The body having a base surface parallel with a fastener driving axis of the fastener driver. The workpiece contact element also includes a fastener guiding portion disposed forward of the fastener receiving region and extending in a direction of the fastener driving axis and a tip retainer includes a longitudinal protrusion and a pair of opposed lateral protrusions. The longitudinal protrusion extends from a forwardmost end of the body, and the opposed lateral protrusions are position on opposite lateral sides of the body adjacent the forwardmost end. The fastener guiding portion includes a platform extending above the base surface of the body and spaced rearwardly from the forwardmost end of the body.

A fastener driving machine according to one embodiment includes an ejection unit housing a fastener, and a driver blade configured to strike the fastener housed in the ejection unit. The ejection unit has a blade guide forming one side of an ejection path to which the fastener is supplied, a guide plate facing the blade guide and forming the other side of the ejection path, and a raised portion provided on the blade guide. The driver blade includes a recessed portion configured to receive the raised portion. The raised portion is positioned at the side of the fastener supplied to the ejection path, and suppresses entirety or part of the fastener from coming off the ejection path.

A fastener driving machine according to one embodiment includes an ejection unit housing a fastener, and a driver blade configured to strike the fastener housed in the ejection unit. The ejection unit has a blade guide forming one side of an ejection path to which the fastener is supplied, a guide plate facing the blade guide and forming the other side of the ejection path, and a raised portion provided on the blade guide. The driver blade includes a recessed portion configured to receive the raised portion. The raised portion is positioned at the side of the fastener supplied to the ejection path, and suppresses entirety or part of the fastener from coming off the ejection path.

A combustion-powered tool comprising a body configured to receive a fuel cartridge, an electrical power supply mechanism, and an electrical device operationally connected to the electrical power supply mechanism and configured to prepare fuel in the fuel cartridge for combustion.

A staple has a pair of legs extending approximately parallel to each other. Base ends of the pair of legs are connected to a crown. The crown has a width greater than a separation distance between the pair of legs. The crown has a planar top surface facing away from the pair of legs.

A staple has a pair of legs extending approximately parallel to each other. Base ends of the pair of legs are connected to a crown. The crown has a width greater than a separation distance between the pair of legs. The crown has a planar top surface facing away from the pair of legs.

A driving tool includes a head-guide surface and a pair of leg-guide grooves, both are formed in a driving passage extending in a driving direction. The head-guide surface slidably guides a head of a U-shaped driving member. Each of the pair of leg-guide grooves is recessed from the head-guide surface toward a side of a first end surface of a tool main body. Legs of the driving member enter the leg-guide grooves. The driving member is driven in an inclined posture in which the legs enter the leg-guide groove, thereby avoiding a slipping off posture in which a driver is deviated from the driving member owing to a reaction force occurred when the driving member is driven by the driver.

A driving tool includes a head-guide surface and a pair of leg-guide grooves, both are formed in a driving passage extending in a driving direction. The head-guide surface slidably guides a head of a U-shaped driving member. Each of the pair of leg-guide grooves is recessed from the head-guide surface toward a side of a first end surface of a tool main body. Legs of the driving member enter the leg-guide grooves. The driving member is driven in an inclined posture in which the legs enter the leg-guide groove, thereby avoiding a slipping off posture in which a driver is deviated from the driving member owing to a reaction force occurred when the driving member is driven by the driver.