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PARK TOOL (109916) HCW-4 Box End and Pin Spanner Crank Wrench (36mm)

PARK TOOL (109916) HCW-4 Box End and Pin Spanner Crank Wrench (36mm)

$41.99 USD
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  • 36mm box end
  • 29mm distance between pins on spanner end
  • Pin diameter is nominally 2.3mm

Park Tool HCW-4 in use

Park Tool HCW-4 Bottom Bracket Wrench for Adjustable Cup-and-Cone Systems

The Park Tool HCW-4 is a double-ended wrench that fits two common fittings found on adjustable cup-and-cone bottom brackets. One end is compatible with the raised 36mm wrench flats commonly found on fixed cups, and the opposite end features a pin spanner with two pins to fit many adjusting cups with pin holes. Heat-treated and nickel plated for a lifetime of use.

Center to center measurement between pins is 29mm. Pin diameter is nominally 2.2mm.

HCW-4 HCW-5 HCW-11 HCW-18
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Typical Application Cup-and-Cone Bottom Brackets Cup-and-Cone Bottom Brackets Cup-and-Cone Bottom Brackets One-Piece Cranks
Side 1 Application Fixed Cups with 36mm Wrench Flats 3-Notch Lockrings with 44-46mm Outer Diameter Adjustable Cups with 16mm Wrench Flats Adjusting Cones with 2 Notches
Side 2 Adjustable Cups with Pin Holes Most Lockrings with 43-46mm Outer Diameter Adjustable Cups with Recessed Slots Fixed Cones with Three Notches
Park Tool bike shop repair center vintage

TRUSTED SINCE 1963

Since our origins in the back of a bike shop in 1963, it has been our sole mission to design and manufacture high-quality tools that empower mechanics and riders of all skill levels to service their bicycles. Each one of our 500+ tools is a product of our decades of experience and expertise in the industry, in the shop and on the trail.

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