This key has a ball at one end that allows angular tightening. Use this key for 1/4-20 Socket Head and 5/16-18 Button Head & Flat Head Screws. Also used for 15 Series End Fasteners.

This key has a ball at one end that allows angular tightening. Use this key for 5/16-18 Socket Screws, and ideal for the 15 Series Anchor Fasteners.

This key has a ball at one end that allows angular tightening. Use this key for #10-32 Socket Head and ¼-20 Button Head Screws. This key is used for 10 Series Anchor Fasteners, as well as 10 Series End Fasteners,

This key has a ball at one end that allows angular tightening. Use this key for 10 Series Hidden Corners.