Hammer Black Widow Urethane vs. Hammer Blue Hammer

Compare the specs of the Hammer Black Widow Urethane and Hammer Blue Hammer 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 Urethane	Blue Hammer
Cover Name	Urethane	Performance Urethane
Cover Type	Urethane Solid	Urethane
Box Finish	360 / 500 / 500 Abralon	800 / 1000 / 2000 / 4000 Abralon
Color	Black	Blue
Core Name	Gas Mask	NA
Core Type	Asymmetrical	Symmetrical
RG	2.50	2.57
Total Diff.	0.058	0.032
Int. Diff.	0.016	0.000
Torque Length Back End Total Hook Ball Tester Ratings	See Performance Ratings... Already a premium member? Click here to log in.

The graph below shows a visual comparison of the selected balls. Hover over each colored circle in the graph to see that ball’s name and ratings. Click a circle to view that ball’s full review.

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Bowling Ball Comparison Graph