HCW-11 - Slotted Bottom Bracket Adjusting Cup Wrench 16mm

Park Tool HCW-11 Adjustable Cup Wrench

The HCW-11 fits slotted bottom bracket adjusting cups common on older English bicycles and less expensive bicycles with raised 16mm wrench flats. The opposite end has two prongs that are approximately 23mm x 5mm for cups with recessed slots.