Solid Carbide Delta Drill Dia4.00Mm X 27 Flutelength X 6Shk. Dia X 74 Overall Length Tin Coatedto, Extra Long Solid Carbide Drill Dia. 11 L/D 10 Towork On Steel Forging Upto 35Rc, Can Withstandthe F , Solid Carbide Drill 6 Mm Dia L /D= 5 Tospecification R840 06 00 50 Aoa 1220 Make Sandvik Towork On Quantity: 34