How To Drill A Hole In A Glass Door

Insert the barrel into the hole from the interior side and hand thread the viewer together.

How to drill a hole in a glass door.

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. Glass can easily be drilled with the correct drill bit and a suitable lubricant coolant. 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. In this video we drill a hole using a spear shaped glass drill bit.

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. Certain glass and drill bits require different drill speeds in the drilling technique. You just stick a standard drill bit in your drill and pull the trigger. Drilling into tempered glass requires special diamond drill bits in order to cut through the dense glass.

Put the drill bit back into the hole and run it for a few seconds to clean it up and enlarge it very slightly. If the barrel fits the hole too tightly to rotate remove it from the hole. Continued drilling through the opposite side until you complete the door knob hole in the 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.

Making holes in soft materials like wood is easy. Once the center bit protrudes through the door stop and switch sides. 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. Periodically stop the drill and gently clear the glass dust from the hole with compressed air.

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.