Compare the specs of the Hammer Ruthless and Hammer Flawless 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 | Ruthless | Flawless |
| Cover Name | Juiced Solid | Juiced Pearl |
| Cover Type | Reactive Solid | Reactive Pearl |
| Box Finish | 500 / 1000 / 2000 Abralon | 500 / 1000 Abralon / Powerhouse Factory Finish Polish |
| Color | Blue / Dark Blue / White | Pink / Blue / White |
| Core Name | 40 Watt | 40 Watt |
| Core Type | Symmetrical | Symmetrical |
| RG | 2.52 | 2.52 |
| Total Diff. | 0.041 | 0.041 |
| Int. Diff. | 0.000 | 0.000 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |