Toolex Reamers with straight shank and spiral flute are designed for precision hole enlargement and finishing. The 0.69 mm diameter reamer is built from high-speed steel with cobalt (HSS-E), delivering durability and heat resistance for consistent hole quality across a range of materials. Efficient chip evacuation with spiral flute: The spiral flutes move chips away from the cut, reducing clogging and heat buildup, helping maintain a smooth hole finish and extending tool life. Durable HSS-E construction: Crafted from high-speed steel with cobalt, this reamer withstands higher cutting temperatures for reliable, consistent results in demanding applications. Straight shank for easy mounting: The straight shank design fits a wide range of tool holders and machines, enabling quick setup and flexible integration into existing setups. Together, this combination of precise geometry, robust material, and simple mounting helps you achieve accurate, finish-ready holes with fewer passes, while reducing downtime and rework across a variety of projects.