Walter (Greer, SC) presents the new P6011 series inserts for drilling steels and cast irons with the D4140 and D4240 drill bodies. The exchangeable-drill inserts are made of the WPP25 grade, which features a fine-grained carbide substrate and an AlTiN (aluminum titanium nitride) coating deposited via HiPIMS (high-power impulse magnetron sputtering) for a high level of wear resistance and maximum tool life.
A gold-colored ZrN (zirconium nitride) top layer coating provides the best wear detection. The inserts have an optimized geometry for enhanced centering properties and a corner protection.
The primary application for the P6011 inserts, which will be replacing the older P6001 series inserts, is drilling high-strength steels with a hardness up to 43 Rc (ISO P material group). The secondary application is drilling cast iron (ISO K material group). The insert is designed to work in tool bodies up to 7 × D without pilot drilling.
Potential benefits include outstanding process reliability when drilling high-strength steel, improved cost efficiency through simple wear detection and significantly increased productivity.
