Compare the specs of the Hammer Black Widow Black/Gold and Hammer Rebel Yell side by side in the ball comparison table below. To view the full bowling ball review for one of these balls, click the ball name link in the table below.
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| Brand | Hammer | Hammer |
| Ball Name | Black Widow Black/Gold | Rebel Yell |
| Cover Name | Aggression Hybrid | Juiced Pearl |
| Cover Type | Reactive Hybrid | Reactive Pearl |
| Box Finish | 500 / 1000 Abralon / Powerhouse Factory Finish Polish | 500 / 2000 Abralon / Powerhouse Factory Finish Polish |
| Color | Black / Gold | Steel / Yellow / Blue |
| Core Name | Gas Mask | Rebel |
| Core Type | Asymmetrical | Symmetrical |
| RG | 2.50 | 2.48 |
| Total Diff. | 0.058 | 0.044 |
| Int. Diff. | 0.016 | 0.000 |
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