The DeWalt DT70728 19 piece black and gold drilling set in a tough case. No spin shank which eliminates bit splippage, provides positive lock on chuck, and ensures clean and accurate holes. The precision ground central point has an optimised design for faster material penetration and increased drilling speed. The tough core is twice as strong core for increased durability and reduced shank breakage. Optimised helix angle for reduced pull through and a 70% reduction in breakthrough torque. Supplied in a tough case, this is part of a connectable case system that is TSTAK compatible. Individual tough cases can be clipped together for easy transportation. Specifications • Width: 1-10mm • Various Head Sizes Features and Benefits • Tough case and caddy compatible • No spin shank • Tough core • Optimised helix angle • Speed tip bits Contents • Kit includes 19 black and gold metal bits: 1, 1.5, 2 x 2, 2 x 2.5, 2 x 3, 2 x 3.5, 2 x 4, 2 x 5, 5.5, 6, 7, 8, and 10mm.