Niagara Cutter N56100 Cobalt Steel End Mill, General Purpose, .
WEBSep 16, 2010 · The Niagara Cutter DPC560 TiNcoated cobalt steel doubleend square end mill has four flutes and a 30degree helix angle for generalpurpose machining on a range of materials. The doubleend design has cutting edges on both ends, allowing a new cutting surface to be substituted when the first shows wear, which doubles the tool's life .