Porter Cable Cylindrical Lock Boring Jig, Model 511
                            
                        
                                                        
                            
- The quick, easy way to install cylindrical locks Jig locates for 2-3/8" or 2-3/4" backset in seconds. 
 - Adjustable for door thickness from 1-5/16" to 2-1/8" 
 - Drills all holes in one set-up. 
 - Includes strike locator for accurate placement of jamb mortise. 
Standard Equipment: 
 - Lock boring jig 
 - 1" boring bit 
 - 2-1/8" boring bit
 -  full-up strike mortiser
 - latch mortiser
 -  maximum security mortiser strike locator
 - quick-change drill adapter
 - storage case.
Porter Cable Cylindrical Lock Boring Jig Owner's Manual