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The HCW-9 is a combined 36mm and 40mm head spanner (or wrench) from Park Tool.
We have 2 left in stock in stock
Warning: Last items in stock!
Head spanner with "Y" head design. Headset wrench openings are laser cut to ensure a tight, accurate fit.
Precise sizing is achieved by high voltage computer controlled laser technology after heat treatment.
Waiting until the wrench is heat treated eliminates shrinkage and expansion of the steel after the wrench is sized.
It takes longer, and costs more, but it's worth the extra effort.
Weight: 257.6g (9.2oz)
Park Tool Reference: HCW-9