How To Drill A Hole In Plastic Sheet

When drilling plastic the larger the hole the slower drill speed you should use since high speeds can melt the plastic.

How to drill a hole in plastic sheet. Place your plexiglass sheet on top of a piece of scrap plexiglass one that is already ruined or a piece of medium density fiberboard mdf this will make it less likely that you will chip the back of the board or scratch it when the drill bit goes through. 5 clamp both sheets to a secure surface. If you d rather purchase the plastic drill bit you need simply visit your favorite hardware store or shop online for the greatest variety and information. Select the drill bit that matches the size hole you want to drill.

Before drilling it s best to clamp down the plastic securely to a solid surface and back up the piece you are drilling with a spare piece of plywood underneath. When you start the drilling process ensure that the hole is away from the edge of the plexiglass. This will avoid cracking which may damage the entire sheet. Set the drill to its slowest setting if it has a variable knob.

Quick way to make a long hole in plastic using a torch. With out using a drill you can make a hole in most plastics. This way the drill bit enters the plywood when it exits the plastic and avoids chipping the surface on the bottom. Before you embark on drilling the main hole you should consider starting with a pilot hole.

Depress the trigger as lightly as possible and drill a hole very slowly through the plastic. Small flats must be ground on each side of the edges that will cut into the plastic. Step 2 adjust the drill press speed to between 350 and 1750 revolutions per minute or rpms. Insert the correctly sized high speed drill bit into a drill press chuck.

Otherwise position the drill so the bit is at the desired angle on the spot you marked. The pilot hole should be at least 1 2 the diameter of the final hole. For example to drill a 1 2 inch hole you can make a pilot hole by beginning with a 1 4 bit drill and then moving to a 1 2 bit drill.