Product Description Tungsten Carbide Center Drill Bit 1, Designed to machine high hardened material 2, Fit for Mould steel, Cast iron, Tiyanium alloy, Copper, Aluminum processing. 3, Mainly for the processing of center location hole of the workpieces. We also supply products as per customers' requirements. If you are interested in our products, please just feel free to contact us at any time.Order No. OutsideDiameter(d) Angle ShankDiameter(D) OverallLength(L) FluteLength(l) 1.0×60°×4D×34L×1.0 1.0 60° 4 34 1.0 1.5×60°×5D×40L×1.5 1.5 60° 5 40 1.5 2.0×60°×6D×45L×2.0 2.0 60° 6 45 2.0 2.5×60°×7D×50L×2.5 2.5 60° 7 50 2.5 3.0×60°×8D×50L×3.0 3.0 60° 8 50 3.0 4.0×60°×10D×60L×4.5 4.0 60° 10 60 4.5 5.0×60°×11D×70L×5.5 5.0 60° 11 70 5.5
