Roughneck® P2 Hard Cap, 8 point Ratchet, P2A, Black no checkout flat on opposite Backs of all flat on opposite Backs of all half round bastard files are double cut Backs of all 4 and 6" files are single cut Backs of all half round second cut files are longer than 6" are double cut while slight taper in width towards the file's point creates ease of access in slots Double cut on the sides for rough filing and single cut on the edges for a smooth finish air circulating over the sweatband lowers the temperature inside the cap Roughneck caps are built to provide exceptional crack resistance and handle hard knocks in the toughest places The P2A series tolerates heat up to 370° wile delivering a long service life under many adverse conditions The P2HN series is designed for high performance at extremely elevated temperatures up to 500° in these extreme environments