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One side is a single hook, the other side is a hook wrench with three grooves, both sides are very suitable for the combination of locking rings
Suitable for three-groove locking ring with maximum external diameter of 46 mm and small diameter of 40 mm
Most of them are used for bottom bracket type locking rings. They are very suitable for locking gear locking rings, tightening or removing them
This is a necessary tool for bicycle undercarriage or crank operation
Good quality and easy to use
DEF Lock Spanner TL31 with Double Sides Single Hook and Three-Hook End