Pferd 25922 Spherical Carbide Bur SD-1 L6 Pferd Sale! from 1545 /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. Shank Diameter 1/4" Head Diameter 1/4" Head Length 3/16" Cut: Double Shank Length: 5-15/16" Overall Length: 6-1/8" SKU:PFE 25922