Fastener driver assembly

A fastener driver assembly comprising:

• a fastener driver including:
• a head having first and second opposing surfaces and a radial center;
• a pin extending from the first surface;
• a first neck having a neck radial dimension and being coupled to the head at the second surface proximate the radial center;
• and
• a shoulder coupled to the first neck and having a shoulder radial dimension larger than the neck radial dimension in a portion of the shoulder;
• and
• a nose piece adapted to couple with a reciprocating tool and including:
• an opening having first and second ends and adapted to receive the shoulder therethrough from the first end to the second end when the shoulder is inserted into the opening, the opening having an opening shape corresponding to a cross-sectional shape of the shoulder and extending from the first end to the second end;
• a shelf located proximate the second end and adapted to abut the shoulder when the shoulder is inserted through the opening and rotated;
• a passage recess connected to the opening at the second end and having a passage recess shape that at least partially corresponds to the cross-sectional shape of the shoulder, the passage recess preventing rotation of the shoulder when the shoulder is located in the passage recess;
• a turning recess connected to the passage recess and adapted to allow rotation of the shoulder;
• and
• a locking recess aligned at an angle to the passage recess and extending from the turning recess to the second end of the opening, the locking recess preventing rotation of the shoulder when the shoulder is located in the locking recess.

A method of operating a tool comprising:

• providing a fastener driver having pins extending from a head in a first direction and a neck extending from the head in a second direction, a first neck having a neck radial dimension coupled to the head at the second surface proximate the radial center, and a shoulder coupled to the first neck and having a shoulder radial dimension larger than the neck radial dimension in a portion of the shoulder;
• moving the fastener driver in the first direction to insert the fastener driver into a nose piece having an opening with first and second ends and adapted to allow passage of the shoulder therethrough from the first end to the second end when the shoulder is inserted into the nose piece, the opening having an opening shape corresponding to a cross-sectional shape of the shoulder and extending from the first end to the second end;
• moving the fastener driver past the second end and into a passage recess having a passage recess shape that at least partially corresponds to the cross-sectional shape of the shoulder, the passage recess preventing rotation of the shoulder when the shoulder is located in the passage recess;
• moving the fastener driver through the passage recess and into a turning recess extending from the passage recess;
• rotating the fastener driver within the turning recess;
• moving the fastener driver in the second direction to dispose the fastener driver within a locking recess of the nose piece, the locking recess extending from the turning recess to the second end of the opening, the locking recess preventing rotation of the shoulder when the shoulder is located in the locking recess;
• and
• coupling the nose piece to a tool.