Solid Carbide DrillsHolemaking Solid Carbide Drills DZC - Step ∙ Internal Coolant ∙ 3D P M K N S H Specification .Reinforced Shank .Internal Coolant .UNIX Coating .Tolerance h8 ● ● ● ○ .For drill with a counterbore, countersink, or chamfer. .Customizable Unit:mm Order No. D L1 L2 L Ds Order No. D L1 L2 L Ds DZC03300301 3.30 12 26 62 6 DZC04200301 4.20 15 28 66 6 DZC05000301 5.00 18 36 79 8 DZC06800301 6.80 24 48 90 10 DZC08500301 8.50 30 55 102 12 Cutting conditions : Table 07 B034