Chip Cross-Section WBH30P WBK40U CW2015 CW5025 Advanced Materials for Cast Iron Machining Overview Advanced Materials for Cast Iron Machining PcBN Ceramics Finishing Cast Iron Heavy Machining Cast Iron Machining Grade Selection Constant and high-quality casting? Yes No High load? Roughing Finishing Yes No CW5025 CW5025 Roughing Finishing Roughing Finishing CW2015 WBK40U WBH30P CW5025 CW5025 WBK40U WBK40U CW2015 WBH30P widia.com B171