Patent ID: 8813612

Claim:
A locking mechanism for use with a tool, comprising: a. a tool having, a first working end, an opposite second end, a central axis therebetween, a plurality of axial recesses formed on an outer surface of said tool, and a bore formed in said opposite second end transverse to said central axis; b. a cap rotatably received on said opposite second end, said cap comprising a plurality of recesses formed on an outer surface thereon and a recess formed in a bottom surface facing said tool; c. a pin positioned in said opposite second end transverse bore and said cap bottom surface recess; d. a spring disposed in said cap bottom surface recess, said spring being operatively connected to said cap and at least one end of said pin, wherein said cap is rotatable between a first position in which said plurality of cap recesses aligns with said plurality of tool recesses, and a second position in which said plurality of cap recesses is out of alignment with said plurality of tool recesses, and said cap is biased by said spring into said second position.