An adjusting mechanism for use in a staple gun includes an adjuster which is movably received within a slot defined in an outer tube and communicating with a chamber thereof, such that the movement of the adjuster will change the space within the chamber and therefore alter a thrust generated by an explosion of cartridge and which impacts agsinst a staple releasably received within the staple gun.
A combustion chamber featuring an orifice plate which promotes complete, clean, and consistent combustion of the propellant charge used in a powder actuated tool. The combustion chamber allows extended operation of a power adjustment which has improved energy variance, a higher range of power adjustment, and complete clean combustion at any power level.
