• A 47mm reamer for cutting the lower head tube on frames using an IS47 bearing assembly for a 1-1/4" integrated headset
• 45-Degree bearing set geometry
• Neutral rake grind for use in all common bike frame materials
• Use in conjunction with the HTR-1 or HTR-1B Head Tube Reaming and Facing Set, #690-XL Facing Cutter and 750.2 Oversized Centering Cone