PFERD produces an extensive range of top quality carbide burs and bi-metal hole saws. PFERD burs deliver very high stock removal performance over their entire service life, providing outstanding results in minimal time. With the CAST cut, PFERD has developed innovative burs especially for work on cast iron. They are characterized by an extremely high stock removal rate on cast iron and impress through smooth milling with significantly reduced vibration and less noise. With the CAST cut, PFERD has developed innovative burs especially for work on cast iron. They are characterized by an extremely high stock removal rate on cast iron and impress through smooth milling with significantly reduced vibration and less noise.