Description: Double side keyholes The key cylinder size is 27.5+10+27.5mm Comes with 8 keys: 5pcs “A ” keys, 2pcs "B" keys, 1pcs "C" key "A" and "C" keys only for home owner, "B" keys only for the qualified installation person Key: Double row ball + curve Slot Lock Total Length: Approx. 2.56 inch / 65 mm Key Hole Dia. : Approx. 0.63 inch / 16mm Color: Brass tone Material: Brass Class: Super B which is a higher level of security, Double row bullet and curved slot, Anti-theft standards need to open more than 280 minutes Operating Instructions: "A" and "C" keys only for home owner, "B" keys only for the qualified installation person "C" KEY CAN NOT BE USED BEFORE KEY CYLINDER INSTALLED WELL After installation finished, the home owner puts the "C" key into the door and turns 360 degrees, then the "B" keys will be disabled; "A" and "C" keys are used normally Can not use any kind of lubricating oil, in particular cases, you could use a little industrial white wax or pencil powder Package Includes: 1 x Key Cylinder 8 x keys
