Replacement cutter for htr 1 tool to face and ream integrated headset systems facing improves the alignment of bearings in the headset the park tool 756 s set will ream and face the head tubes of bike that has the integrated headset system compatible with the cane creek standard that have 41 mm diameter bearings set includes non interchangeable upper and lower cutters both will cut the frame to the 45 degree standard the cutter mount on the park tool htr 1 head tube reamer and fac