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A tool free interchangeable fastener guide is provided for use with a fastener tool having a nosepiece with a captured transverse pin and a back plate. The guide includes a front plate having a tool engaging end and an opposite fastener outlet end, an outer surface and an inner surface. A butt plate

A tool free interchangeable fastener guide is provided for use with a fastener tool having a nosepiece with a captured transverse pin and a back plate. The guide includes a front plate having a tool engaging end and an opposite fastener outlet end, an outer surface and an inner surface. A butt plate is pivotably joined to the outer surface, and a spring clip has a first end pivotably secured to the butt plate and a second end configured for attachment to the fastener tool. The tool engaging end has an open slot constructed and arranged for pivotally engaging the captured pin, the front plate being disengageable from the captured pin without the use of tools.

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1. A tool free interchangeable fastener guide for use with a fastener tool having a nosepiece with a pivot pin and a back plate, said guide comprising: a front plate having a tool engaging end and an opposite fastener outlet end, an outer surface and an inner surface, and a substantially flat, rigid

1. A tool free interchangeable fastener guide for use with a fastener tool having a nosepiece with a pivot pin and a back plate, said guide comprising: a front plate having a tool engaging end and an opposite fastener outlet end, an outer surface and an inner surface, and a substantially flat, rigid body defined by said outer and inner surfaces;a butt plate pivotably joined to said outer surface;a spring clip having a first end pivotably secured to said butt plate; and a second end configured for attachment to the fastener tool, both said butt plate and said spring clip being positioned in front of said outer surface; andsaid tool engaging end having a slot including a cavity constructed and arranged for pivotally engaging the pivot pin, said front plate being disengageable from the pivot pin without the use of tools. 2. The fastener guide of claim 1 wherein said slot is transverse to a longitudinal axis of said front plate. 3. The fastener guide of claim 1 wherein said slot is generally U-shaped when viewed from a lateral side relative to a longitudinal axis of said front plate. 4. The fastener guide of claim 3 wherein said slot further includes an arcuate portion joining two leg portions, each said leg portion including a first segment extending parallel to a longitudinal axis of said front panel, and a second segment extending at an angle to said first segment. 5. The fastener guide of claim 1 wherein said inner surface defines a fastener passageway. 6. The fastener guide of claim 1 wherein said butt plate engages said front plate along a transverse axis. 7. The fastener guide of claim 1 wherein said spring clip pivotably engages said butt plate about a transverse axis. 8. The fastener guide of claim 1 wherein the tool has a pair of forwardly extending hooks, and said spring clip is provided with a laterally extending pin, each end of which is configured for engaging a corresponding one of the hooks. 9. The fastener guide of claim 1 wherein said front plate is configured for accommodating at least one of 14 gauge and 16 gauge finishing nails. 10. A fastener driving tool, comprising: a housing at least partially enclosing a combustion power source;a nosepiece disposed at an end of said housing, said nosepiece including a retaining cup having a pivot pin;said nosepiece further including a front plate having a tool engaging end and an opposite fastener outlet end, an outer surface and an inner surface;a butt plate pivotably joined to said outer surface for pivoting about an adjoining axis transverse to a longitudinal axis of said front plate, said adjoining axis being positioned at approximately half a longitudinal length of said front plate;a spring clip having a first end pivotably secured to said butt plate; and a second end configured for attachment to said nosepiece; andsaid tool engaging end having a slot including a cavity constructed and arranged for pivotally engaging said pivot pin, said front plate being disengageable from said pivot pin without the use of tools. 11. The tool of claim 10 wherein said slot is generally U-shaped when viewed from a lateral side relative to a longitudinal axis of said front plate, said slot further includes an arcuate portion joining two leg portions, each said leg portion including a first segment extending parallel to a longitudinal axis of said front panel, and a second segment extending at an angle to said first segment. 12. A front plate configured for use in a nosepiece of a fastener driving tool, comprising: a body defining a longitudinal axis and having a tool engaging end and an opposite fastener outlet end, an outer surface and an inner surface;said inner surface at least partially defines a fastener passageway;a slot defined at said tool engaging end, said slot is generally U-shaped when viewed from a lateral side relative to said longitudinal axis of said front plate, said slot further includes an arcuate portion joining two leg portions, each said leg portion including a first segment extending generally parallel to the longitudinal axis of said body, and a second segment extending at an angle to said first segment. 13. The front plate of claim 12 further including said front surface having a forwardly projecting rectangular boss. 14. The front plate of claim 12 wherein one of said leg portion segments is longer than the other. 15. The front plate of claim 12 wherein said angle is obtuse.