Accessory tool

An accessory tool comprising:

• an effector end including:
• a body having a first end and a second end opposite the first end,
• a base shoulder adjacent the second end, and
• a first fillet extending radially inward from the base shoulder to the body;
• and
• a shank coupled to the effector end, the shank including:
• a tool engagement portion configured to be received within a tool and having a hexagonal cross section defining a maximum outer width,
• a reduced diameter portion disposed adjacent the effector end and defining a minimum outer dimension that is less than the maximum outer width, and
• a second fillet extending outward from the reduced diameter portion to the base shoulder.

An accessory tool comprising:

• an effector end including:
• a body having first end, a second end opposite the first end, and an engagement mechanism configured to engage corresponding features of a socket to detachably couple the socket to the accessory tool, and
• a base shoulder adjacent the second end;
• and
• a shank coupled to the effector end, the shank including:
• a tool engagement portion configured to be received within a tool and having a hexagonal cross section defining a maximum outer width,
• a first reduced diameter portion disposed adjacent the effector end and defining a minimum outer dimension that is less than the maximum outer width, and
• a second reduced diameter portion disposed adjacent the tool engagement portion and configured to receive a ball detent.