New Beyond KYS40-grade solid ceramic endmills from Kennametal, however, are presenting orders-of-magnitude improvements in machining high-strength nickel-based alloys, roughing at cutting speeds up to 3,300 SFM (1000 m/min) with tool life two to three times longer than comparable solid-carbide tools.Cutting tools made of ceramics, mainly aluminum oxide (Al2 O3) have existed since the early 20th Ce