General description Heavy duty keyed entry door handle sets can be locked and unlocked from the exterior with a key, and then locked or unlocked from the inside with an associated turn-button. While primarily used to secure entrances and side doors, it can be used anywhere a little extra security is desired. Technical specifications Adjustable latch: 60mm or 70mm (2.4 or 2.75 inch) Fit for door thickness: 35mm to 45mm (1-3/8 to 1-3/4 inch) Rosette dimensions: 65 x 65mm (2.5 x 2.5 inch) Door handle length: 120mm (4.88 inch) Handing: Left & Right, Reversible Installation Drill hole from both sides of the door: 54mm Drill hole straight into the edge of the door: 25mm Comes with all accessories and instructions Easy installation - One-person project Usage Probrico keyed entry door handle sets can be locked and unlocked from the exterior with a key, and then locked or unlocked from the inside with an associated turn-button.