front door lock handle smonet exterior entry passage handle handleset reversible left right with lever for office black

there is a screwdriver inside, you only need a screwdriver to complete all the installation. the handle set has an adjustable through-bolt under the handle, which slides up and down 1-1/2" - 38mm, and the position can be adjusted y without maintenance or re-drilling. the length of the deadbolt can be adjusted from 60mm to 70mm (2-3/8 to 2-3/4 inches). the thickness of the door ranges from 38 to 50 mm. fits most standard-size doors. highest certified strength, safety and durability. the metal structure is high-strength and anti-corrosion, and the surface is smooth and of impurities. smonet provides a 1-year warranty and lifetime technical support. please call any questions you have to 137-1366-8352 if having any installation inquiries..syi