Adjustable diameter hole cutter

An adjustable hole cutter system operable to cut a plurality of different sized diameter holes in a work piece, the adjustable hole cutter system comprising:

• a debris shield including a bottom wall, a circumferential channel formed in the bottom wall, a sidewall extending outwardly from the bottom wall toward a circumferential rim of the debris shield, and a plurality of circumferentially spaced steps formed in the sidewall and protruding inwardly within the debris shield;
• and
• a hole cutter assembly substantially received within the debris shield, the hole cutter assembly rotatable about an axis relative to the debris shield, the hole cutter assembly including
• an arbor configured to connect to a power tool for rotation about the axis,
• a drill bit coupled to the arbor for rotation with the arbor,
• a first arm moveable relative to the axis,
• a first cutting blade coupled to the first arm and moveable with the first arm,
• a second arm moveable relative to the axis,
• a second cutting blade coupled to the second arm and moveable with the second arm, and
• first and second detent assemblies biasably engageable with the first and second arms to releasably hold the first and second arms in a plurality of discrete positions;
• wherein the first and second cutting blades are selectively moveable relative to the axis to adjust a cutting diameter of the hole cutter assembly;
• wherein as the drill bit moves into engagement with the work piece along the axis, a distance between the bottom wall and the circumferential rim of the debris shield remains constant;
• and
• wherein the plurality of steps disrupts airflow within the debris shield as the hole cutter assembly rotates such that debris created from cutting into the work piece generally collects within the circumferential channel.