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Hammer Purple Pearl Urethane KR Limited

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

How it moves

Foul lineArrows · 15 ft36 ft · board 131.5° entry
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.
Hammer

Purple Pearl Urethane KR Limited

Overseas only
Hook potential3 (est.)3 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
Urethane Pearl
Urethane
Core
LED
Symmetric
Factory finish
500/1000/2000 Siaair Micro Pad
Color
Not listed
Released
2024-08-15
Sold
Overseas only
USBC
Approved

Weights and specs

WeightRGDifferentialInt. diff
12 lb2.630.026—
13 lb2.630.020—
14 lb2.680.013—
15 lb2.650.015—
16 lb2.610.030—

Surface

oil · laneCoarse grit
oil · laneCoarse and fine
oil · laneFine grit or polish
500/1000/2000 Siaair Micro Pad. Sanded then smoothed (1500 to 3000 grit): enough tooth for oil, enough gloss to get down the lane. Most box finishes. Surface changes over games, and a pro shop can take any ball either way with a pad.

Balls like this

Same coverstock and core type; the closest company for this ball in a bag.