Patent ID: 8801433

Claim:
A dental instrument, comprising: a first member, having an axial passage running therethrough defined by an internal surface of a sidewall, said axial passage communicating between a first aperture at a first end of said first member to a second aperture at a second end of said first member; an axle positioned at or adjacent to said first end of said first member, said axle configured for a removable rotational engagement with a dental tool; a second member having a proximal end and extending to distal end; a projection extending along a center axis of said second member, from a distal edge at said distal end of said second member; said second member postionable through said first aperture to an engaged position in a coaxial engagement within said axial passage of said first member; means for engagement of said second member to said first member to maintain said second member in said engaged position; said projection, with said second member in said engaged position, extending through said first aperture to a tip, said tip of said projection forming a contact with a surface of said dental tool positioned in a said rotational engagement; said contact providing means for fixing a radial position of said dental tool in a said rotational engagement with said axle, whereby a user can engage a said dental tool to said axle, and rotate said tool thereon to a user chosen position, and render said tool to fixed said radial position upon said axle, by positioning said second member to said engaged position; a notch extending across said second end of through openings formed in opposing portions of said sidewall at said first end of said first member; said axle removably engageable with opposite portions of said sidewall to a mounted position, in a direction traverse to said notch; said tool when positioned to said rotational engagement having a circumferential surface facing toward said first end of said first member; at least one recess formed in said circumferential surface; and said tip of said projection formed in a cooperative shape to said recess, whereby said tip is positionable to said contact with said recess to render said tool to a said fixed radial position.