Can be processed with a non-step deep holes; Effective for shallow holes; Cutting material: Carbon steel, alloy steel, stainless steel, cast iron; Blade diameter: 0.2 inches (4 mm); Groove length: 2.1 inches (54 mm); Total length: 3.3 inches (83 mm); Shank diameter: 0.2 inches (4 mm); Straight drill for processing of TiN coating; Cobalt High + TiN coating.