The Var Tools Adjustable Head Reamer with HSS Blade is a professional-grade workshop tool designed for precise preparation of bicycle head tubes. Built around a high-speed steel (HSS) cutting blade, it delivers clean, accurate cuts that help ensure proper headset fit and long-term frame integrity. This tool is ideal for mechanics who regularly service frames, install new headsets, or correct imperfect factory machining. Its adjustable design allows it to work with a range of common head tube standards, making it a versatile addition to any serious workshop.
Using a dedicated head tube reamer helps align bearing seats, reduce unwanted play, and improve the smoothness and durability of steering components. The Var adjustable system is engineered for repeatable accuracy, giving you confidence when working on both alloy and steel frames, and in some cases compatible materials as recommended by the manufacturer. Whether you are building custom bikes, refurbishing older frames, or simply demanding the highest quality of fit and finish, this Var workshop tool provides the control and precision needed for professional results.