Bicycle Key Handle

My bicycle lock was made to be durable. But the key was not. The key handle was made of brittle plastic and the life of the lock surpassed the lifespan of the key. The key was made of metal with plastic that sandwiched the metal portion and was held in place by bumps [)(]. This design contains two halves that can hold a key and pressed into place using pliers.

Actual scale is 2.5cm diameter.
Edit if needed to adjust for dimensions of actual key. Print 2 identical copies.
Bevel would be nice, but usable as is.