Dental instrument

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.