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Hammer Web M.B.

Photo and specs courtesy of Hammer. Reproduced with credit to the maker.

How it moves

Foul lineArrows · 15 ft48 ft · board 5.58.5° entry
Hockey-stick turn (asymmetric core). Dotted is skid, then the turn, then the roll into the pocket. Estimated from the coverstock, finish, core, and differential for a right-handed bowler with medium revs on a house shot. Lane conditions, speed, and layout move all of this.
Hammer

Web M.B.

Hook potential7 est.7 of 10, estimated

How much the ball wants to hook, 1 (straight, a spare ball) to 10 (the strongest oil-eaters). The maker publishes no number for this ball, so this is estimated from the coverstock, core, finish, and differential.

Coverstock
Semtex NE Pearl
Reactive pearl
Core
Spheroid Asymmetrical
Asymmetric
Factory finish
500, 1000 Siaair / Crown Factory Compound
Color
Dark Blue / Purple
Released
2020-11-19
USBC
Approved 2020-10-20

Weights and specs

WeightRGDifferentialInt. diff
12 lb2.610.0430.011
13 lb2.590.0430.011
14 lb2.520.0470.018
15 lb2.480.0480.018
16 lb2.490.0420.017