Photo and specs courtesy of Hammer. Reproduced with credit to the maker.
How it moves
Arcing turn (symmetric 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.
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
Not Urethane
Urethane
Core
LED
Symmetric
Factory finish
500, 1000 Siaair Micro Pad
Color
Bad Ass Blue Pearl
Released
2023-11-16
USBC
Approved 2023-10-16
Weights and specs
Weight
RG
Differential
Int. diff
12 lb
2.59
0.031
—
13 lb
2.60
0.025
—
14 lb
2.60
0.026
—
15 lb
2.59
0.027
—
16 lb
2.54
0.035
—
Surface
Coarse grit
Coarse and fine
Fine grit or polish
500, 1000 Siaair Micro Pad. Bites through heavy oil, so the ball reads the lane early and hooks sooner. Sanded balls (500 to 1000 grit) live here. Surface changes over games, and a pro shop can take any ball either way with a pad.
Reviews on YouTube
BrunsNick · 2023 · MOST CONTROVERSIAL RELEASE OF 2023! | NU Blue HammerBowlersMart · 2023 · NU Blue Hammer Bowling Ball Review Brandon BohnInsideBowling · 2023 · Reactive Bowling Ball Rolls Like Urethane? NU Blue Hammer First Look w/Matt Russo
Picked by search for this ball; videos and thumbnails belong to their creators and play on YouTube.
Balls like this
Same coverstock and core type; the closest company for this ball in a bag.