Park Tool saw guides ensure a straight, clean cut every time.Hardened steel body with molded contact points to protect tubes and framesFeatures two different cutting slots (standard and carbon cutting blade widths)For aero-shaped seat masts and seat posts up to 3.5" and fork steerer tubes from 1-1/4" to 1-3/4" Park Tool Saw Guides Head & Steerer Tube Cutting Tool UPC: 763477006639