For over 100 years, C.K has been at the forefront of hand tool manufacturing, producing high-quality tools that meet the most demanding needs of trade professionals. C.K tools are engineered to offer leading performance, durability, accuracy, and strength, all of which are key requirements for professional results. They work with metallurgical and design engineers to develop new materials, manufacturing techniques, and finishing treatments to push the boundaries of performance. Driven by research through an extensive panel of cross-trade professionals, tools are developed to assist with everyday tasks; an approach proven to produce innovative tools that transform working practices. The C.K T3015 is a cone drill bit manufactured from high-speed steel to ensure longevity. It features a dual flute construction to provide reduced drilling pressure with faster speed of drilling and has a self-starting tip. Sizes available: 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, and 32mm.