Use a slow. Make it smaller than the finished hole you are planning to drill.
High Performance Solid Carbide Fiberglass And Composite
How to drill fiberglass. Put the point of a large nail on the marks and tap it with a hammer forming an indent in the fiberglass. If you go in to the fiberglass with a regular twist drill a number of things can happen. Drilling the pilot hole well the hard work is done now its time to drill the hole. Make an indentation with an ice pick or other suitably sharp object in the exact location where you want to drill your hole. Insert a 1164 inch drill bit preferrably carbide or diamond tipped into a power hand drill and tighten with a chuck. 46k subscribers step 1.
Drill a small pilot hole in your fiberglass. Increase the rotational speed of the bit. Begin drilling on the slowest speed possible until the drill begins to bite into the fiberglass. 5 when the brad point penetrates the surface on the bottom. Step 3 put on safety glasses and drill pilot holes on the marks that are half the size of the final holes using an electric drill. Chipping from the drill bit itself gelcoat chips away during screwing.
Hold the center 14 inch drill bit of the hole saw perpendicular to the shower wall over the previously drilled pilot holes. How to drill fiberglass. Drilling the final hole now. Do this to every mark to assure the drill bit goes in at the exact point you want it to. Start the drill and gently push forward allowing the drill bit to cut into the material. Step 4 wear protective safety glasses and place the point of the drill bit into the center of each x.
Planning the install the first step is to determine where the fitting will be installed and as the adage goes. Keep an even forward pressure when the hole saw engages the fiberglass surface. Depress the drills trigger to start drill through the fiberglass.
Gallery of How To Drill Fiberglass
