Pferd 24421 Radius End Cylindrical Carbide Bur SC-3 Pferd Sale! from 2157 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Head Diameter 3/8" Head Length 3/4" Cut: Single Shank Length: 1-3/4" Overall Length: 2-1/2" SKU:PFE 24421