Atlas Machines [India] manufactures Button Punch Snap Lock Machine and Double Headed Power Flanger. Atlas Machines [India] is an ISO 9001:2000 certified company. The Button Punch Snap Lock Machine and Double Headed Power Flanger are used for joining sheet metal at right angles on straight runs. This is a more sophisticated joint than the Pittsburgh lock, requiring less labour, The male section snaps tightly into the female with an almost unbreakable joint. The machine is capable of forming a maximum of 20 swg [1.00 mm].