Park Tool 754.2 1-1/8" Head Tube Reamer: 33.90mm
Accessories and replacements parts for Park Tool head and steerer tube cutting tools. Reams head tube to 33.90mm I.D. to accept headset cups with 34.05 - 34.15mm O.D. (1-1/8" traditional press fit standard) Used on EC34 upper or lower headtubes.