【Local shipping】 75MM 37.5 37.5 Brass Key Cylinder Door Lock Barrel High Security Anti Snap Lock

Description: Double side keyholes The key cylinder size is 37.5 37.5 (37.5mm +37.5mm) Comes with 7 keys: 4pcs A keys, 2pcs B keys, 1pc C key A and C keys only for home owner, B keys only for the qualified installation person Lock Total Length: Approx. 2.95 inch 75 mm Key Hole Size: Approx. 0.39 inch 10mm Color: Brass tone(Key handle color red and blue random) Material: Brass 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 7 x keys