High speed deep hole drilling

The drill is characterized by a parabolic flute profile with a 50% larger web and greater chip space than conventional twist drills, and employs a helix angle of 40° – the standard helix angle being 30°. This design provides high rigidity and process reliability thanks to excellent chip formation and chip evacuation. It also reduces or eliminates the need for pecking cycles even at maximum drilling depths. In many applications, drilling to a depth of 10-12xD without pecking is possible. In comparison, standard twist drills have to withdraw much earlier in order to allow for chip removal.The new drill’s HSS-E (5% cobalt content) substrate provides high heat resistance and its TiAIN tip coating boosts cutting parameters and tool life, while its special U form point geometry promotes reliable chip formation and low cutting forces.The new Titex UFL® is suitable for all ISO material groups. The new drill’s available diameter range is from 1 to 12 mm.www.walter-tools.com/us