Sheet Metal Folding Tool: Fixed Length and Depth. Folding Tool seams are formed from two steel halves, permanently joined together. Handy sight holes ensure proper depth alignment. A perfect sheet metal tool for forming on the job. View Versatile – A Roto-Die Hydraulic Sheet Metal Brake is as simple to operate as a hand brake – but has infinitely more production capacity. Productive – Most sheet metal configurations can be formed with just one handling by one operator. A metal brake is the tool for bending custom metal flashing and decorative trim. Every siding contractor and most roofers have one. But a brake can come in handy for all sorts of projects. It seems like an imposing tool to master, but it’s really just a large clamp with a moving hinge. Jun 16, 2015 · The most common way to add grooved seams to sheet metal is to use a bead roller. With a bead roller, you put the metal between a male and female die that are tightened down to press the design that is cut into the dies into the metal. Bead rollers can be mechanical or electric. Kempler carries two types of used manual sheet metal brakes; Apron Brakes and Box & Pan Brakes. Apron Brake, Sheet Metal Hand Brake Apron brakes are the simplest type of used manual brake that Kempler stocks. Apron Brakes feature a solid clamping bar for making straight bends. Almost every maintenance shop or small sheet metal fabricator makes ... Insert the 6-in.-wide sheet 1⁄2 in. into the brake. Lock the sheet in place by pulling the top handle forward. Then lift the bending plate as far as it can travel. Step 3: Compress the hem seam, then create the kickout. The top of the clamp’s leading edge can be used to complete full folds. Easy to Make Bending Press Brake With Flexible Hinge: I have seen some great home-made bending presses. But I wanted to fold up a box from a single sheet of aluminium with the edges turned right over on all sides.