Quick change drill bit

A core drill comprising

• an adapter including:
• a biasing portion having and at least one slot defining a biasing region;
• a first end adapted to be removably connected to a drill spindle;
• and
• at least one locating stop;
• and
• a generally tubular drill barrel including:
• a first end adapted to be removably connected to a second end of said adapter;
• a crown disposed proximate a second end;
• and
• at least one “L” shaped slot proximate said first end, said “L” shaped slot adapted to be removably connected to said at least one locating stop, wherein said biasing portion and said least one “L” shaped slot prevent said generally tubular drill barrel from moving relative to said adapter.

A core drill comprising

• an adapter including:
• a biasing portion having at least one slot defining a biasing region;
• a first end of said adapter adapted to be removably connected to a drill spindle;
• a cavity disposed proximate a second end of said adapter;
• at least one locating stop;
• and
• an o-ring disposed within said cavity;
• and
• a generally tubular drill barrel including:
• a first end of said generally tubular drill barrel adapted to be removably disposed within said cavity of said second end of said adapter, wherein said O-ring creates a seal between said adapter and said first end of said generally tubular drill barrel;
• a crown disposed proximate a second end of said generally tubular drill barrel;
• and
• at least one generally “L” shaped opening disposed proximate said first end of said generally tubular drill barrel, said opening adapted to engage said at least one locating stop, wherein said biasing portion and said least one opening prevent said generally tubular drill barrel from moving relative to said adapter.

A method of attaching a hollow core drill to a drill spindle comprising:

• connecting a first end of an adapter to said drill spindle;
• sliding said first end of said drill barrel into a cavity disposed within second end of said adapter;
• aligning a generally “L” shaped opening disposed proximate said first end of said drill barrel with a locating stop disposed in said cavity of said adapter;
• positioning said first end of said drill barrel against a drill barrel stop disposed within said cavity of said adapter;
• and
• biasing a portion of said adapter against said first end of said drill barrel, wherein an inside diameter D1 of said drill barrel is at least as large as an inside diameter D2 of a crown disposed on a second end of said drill barrel.

A method of removing a jammed core from a hollow core drill attached to a spindle on a drill comprising:

• disconnecting a first end of a hollow core drill barrel from a second end of an adapter;
• removing said jammed core from said first end of said hollow core drill barrel such that a first end of said adapter remains connected to said spindle while said jammed core is removed from said hollow core drill barrel;
• and
• reconnecting said first end of said hollow core drill barrel to said second end of said adapter such that an inside diameter D1 of said hollow core drill barrel is at least as large as an inside diameter D2 of a crown disposed on a second end of said hollow core drill barrel, said act including:
• sliding said first end of said hollow core drill barrel into a cavity disposed within said second end of said adapter;
• aligning an opening disposed on said first end of said drill barrel with a locating stop disposed in said cavity of said adapter;
• positioning said first end of said hollow core drill barrel against a drill barrel stop disposed within said cavity of said adapter;
• and
• biasing a portion of said adapter against said first end of said hollow core drill barrel.