Attachment mechanism for a power tool

An attachment mechanism for connecting an accessory to a rotary power tool, the attachment mechanism comprising:

• a tool-side attachment including
• a plurality of tool-side locking lugs extending from the tool-side attachment, and
• a plurality of tool-side locking slots;
• and
• an accessory-side attachment including
• a plurality of accessory-side locking lugs extending from the accessory-side attachment, the plurality of accessory-side locking lugs engagable with the plurality of tool-side locking slots,
• a plurality of accessory-side locking slots engagable with the plurality of tool-side locking lugs, and
• an actuator extending from one of the accessory-side attachment or the tool-side attachment, the actuator operable to rotate the accessory-side attachment and tool-side side attachment relative to one another between a locked and an unlocked position.

An accessory for use with a rotary power tool having a tool-side attachment mechanism and an electric motor, the accessory comprising:

• a housing having a front end and a rear end opposite the front end, the rear end configured to be selectively coupled to the rotary power tool;
• an accessory-side attachment mechanism configured to selectively couple the accessory to the rotary power tool, the accessory-side attachment mechanism capable of limited rotation with respect to the housing;
• a gear arrangement supported by the housing, the gear arrangement configured to receive torque from the electric motor when the accessory is coupled to the rotary power tool:
• and
• a tool holder disposed within the housing closer to the front end than the gear arrangement and operably coupled to the gear arrangement.