Hammer Fierce Phobia vs. Hammer Black Widow Urethane

Compare the specs of the Hammer Fierce Phobia and Hammer Black Widow Urethane 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	Fierce Phobia	Black Widow Urethane
Cover Name	Semtex Hybrid	Urethane
Cover Type	Reactive Hybrid	Urethane Solid
Box Finish	500 / 2000 Abralon	360 / 500 / 500 Abralon
Color	Blue / Red / Black	Black
Core Name	Phobia	Gas Mask
Core Type	Symmetrical	Asymmetrical
RG	2.49	2.50
Total Diff.	0.054	0.058
Int. Diff.	0.000	0.016
Torque Length Back End Total Hook Ball Tester Ratings	See Performance Ratings... Already a premium member? Click here to log in.

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