The  784918 Scroll 2-Way Latch Entry Door Handle accepts a key on one side of the lock but is operated by a turn-button knob on the other side.  Finished in satin nickel and designed for left or right-hand doors, this handle fits the two most common backsets in the U. S.  (2-3/4 inches and 2-3/8 inches).  The 1/2 inches latch bolt is plated in nickel and does not budge once in place.  Use this handle on standard 1-3/8 inches and 1-3/4 inches thick doors.  This product has a 1 inch by 2-1/4 inches radius corner faceplate.  If you are preparing your door for installation, the cross bore should be 2-1/8 inches in diameter and the edge bore should be 1 inch in diameter.  This product is ANSI Grade-3 certified and rated for residential security. 
Finished in satin nickel and is designed for left or right hand doors
ANSI Grade-3 Certified for residential security
Fits 2-3/4-inch and 2-3/8-inch backsets; Fits 1-3/8-inch and 1-3/4-inch thick doors
Entry Lock; operated by a key on the exterior and is by a turn-button knob on the interior.