HHIP 3/8-inch Single Flute 90 Degree High Speed Steel Countersink Tip size is 1/32-inch. Diameter of shank is 1/4-inch. Overall length is 2-inch. These HHIP HSS single flute countersinks and sets offer versatility, efficiency, and durability, making them especially suitable for portable machine work and applications involving smaller holes. Crafted from durable high speed steel (HSS) for longevity and efficient cutting performance. Single flute for clean and precise cutting, suitable for deburring and chamfering. The single-flute design allows for countersinking smaller holes compared to multi-flute tools. Single flute design aids in efficient chip evacuation during cutting. Ideal for various materials, including metals, wood, and plastics. Available in a variety of sizes to accommodate different hole dimensions. Available in 60° 82° and 90° - 60° enables quick chamfering, ideal for softer materials. 82° offers balanced performance across a wide range of materials. 90° provides a stronger chamfer, suitable for harder materials. Suitable for professional machining applications and DIY projects.