Drilling Sheet Metal Blind

A step drill bit for metal allows you to drill holes in a variety of diameters and some will drill through.

Drilling sheet metal blind.

They re just the thing when you need a perfectly sized clean hole in a steel junction box electrical service panel or even a stainless steel sink. Most blinds are designed for installation in wood window frames but that doesn t mean you can t install them in a metal frame window. Drilling a hole in sheet metal with a twist drill is a rather straightforward operation. Self drilling screws also called teks have a tip that resembles a drill and often have spaced threads like sheet metal screws.

Perfect for blind hole fastening sheet metal or metal roofs. Venetian blind installation is a straightforward process on frames made from wood and other soft materials but harder metal frames require additional preparation. Positioning and boring the screw. Get free shipping on qualified duct sheet metal specialty drill bits or buy online pick up in store today in the tools department.

For the cleanest hole clamp a second piece on top of the metal making a sacrificial sandwich. Fab lok fasteners are a high strength fastener for blind fastening to light gauge steel high clamp up resist severe vibration weather tight. You start off by drilling a small diameter pilot hole and then drill gradually larger holes until you get. Hex washer head machine screw assembled to a slotted aluminum sleeve and epdm sealing washer.

When drilling thin workpieces such as sheet metal place another piece of metal or wood under the workpiece to provide support and prevent bending the workpiece or ruining the hole due to the upthrust created when the drill breaks through. If thin metal must be drilled and a support cannot be rigged under the thin metal then a drill designed. Step drill bits are designed to drill holes in sheet metal and other thin materials. In a single time saving operation these screws drill tap and fasten.

Do not use self drilling screws in blind holes holes that do not pass through the material.