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Hammer Jigsaw Trap

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

How it moves

Foul lineArrows · 15 ft46 ft · board 8.55.6° 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

Jigsaw Trap

Discontinued
Hook potential6 (est.)6 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
Quick Corner™ Pearl
Reactive pearl
Core
Medium Mass Bias Jigsaw Core
Factory finish
Not listed
Color
Blue / Purple / Yellow
Released
2010-06-01
USBC
Approved 2010-05-01

Weights and specs

WeightRGDifferentialInt. diff
16 lb———

Surface

oil · laneCoarse grit
oil · laneCoarse and fine
oil · laneFine grit or polish
Coarse surfaces grip through oil and hook early; fine or polished surfaces skid longer and hook later. Surface changes over games, and a pro shop can take any ball either way with a pad.