How To Drill A Hole In A Glass Door

Put on safety glasses and drill pilot holes on the marks that are half the size of the final holes using an electric drill.

How to drill a hole in a glass door.

Continued drilling through the opposite side until you complete the door knob hole in the door. To drill holes through glass start by attaching a small piece of tape or cardboard to the glass where you want to drill the hole which will prevent the drill bit from slipping. But use this approach on harder materials like metal masonry glass or tile and you ll waste time ruin drill bits and even wreck your workpiece. Then insert the lens into the hole from the exterior side of the door.

The procedure can be long depending on the thickness of the glass and the drill bit needs constant lubrication in order to make it through the glass. Apply firm pressure as you drill the hole into the door making sure the hole saw is flat and not angled as it goes through the door. You just stick a standard drill bit in your drill and pull the trigger. If the barrel fits the hole too tightly to rotate remove it from the hole.

Insert the barrel into the hole from the interior side and hand thread the viewer together. Drilling into tempered glass requires special diamond drill bits in order to cut through the dense glass. Making holes in soft materials like wood is easy. To avoid drilling through both sides of the door wrap the drill bits in masking tape allowing only 1 2 inch of the tip to show.

Once the center bit protrudes through the door stop and switch sides. Certain glass and drill bits require different drill speeds in the drilling technique. Add more lubricating oil as needed to keep the drill point cool stop and replace the drill bit with the next size larger carbide tipped bit then continue drilling lightening up the pressure on the drill with each bit change. Glass can easily be drilled with the correct drill bit and a suitable lubricant coolant.

In this video we drill a hole using a spear shaped glass drill bit.