Overview Reviews Product Description Premium submicron grain carbide Bright finish (TiN and TiAIN coatings available) 118° Four facet point Regular spiral Precision ground carbide drills are designed for high feed rate and good chip evacuation while providing excellent wear resistance and hardness Designed for drilling cast iron, aluminum, copper, plastics, bronze and other similar materials Clarkson Osborn Catalog Product Videos Custom Field Diameter 4.2mm Flute length 43mm Overall length 75mm Package quantity/sold as each 1 Product Reviews Write a Review Write a Review × Clarkson-Osborn 4.2mm TiN Coated Solid Carbide Jobber Drill Bit SC03420T Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *