The Purple Hammer is not just a bowling ball. It's a cultural artifact — one of the most recognizable pieces of equipment in the history of the sport. Made by Hammer (then a brand of Ebonite International), the Purple Hammer was introduced in the late 1980s and became synonymous with the urethane revolution that transformed competitive bowling. Decades after its introduction, it remains in production and continues to sell to bowlers who grew up with it, bowlers who've heard about it, and competitive players who've rediscovered urethane as a tactical weapon on specific lane conditions.
The History
Hammer introduced urethane bowling balls in the mid-1980s as a dramatic step beyond the polyester balls that had dominated the market. The original Hammer urethane line offered significantly more hook potential than anything bowlers had used before, and the Purple Hammer — with its distinctive deep purple color — became the face of that revolution.
At its peak in the early 1990s, the Purple Hammer was the ball to have. Professional bowlers used it to win major titles. League bowlers who switched to it saw their averages jump. Its reputation became almost mythological in the bowling community — the ball that changed what hook meant on a bowling lane.
When reactive resin arrived in the early 1990s, urethane was quickly displaced as the performance standard. But the Purple Hammer never died. Hammer kept producing it, generation after generation, as a testament to its cultural status and because a loyal user base never entirely abandoned it.
Current Specifications
| Spec | Value |
|---|---|
| Coverstock | Urethane |
| Core | Symmetric (pancake-style low diff) |
| RG | ~2.57 (varies by weight) |
| Differential | ~0.010 |
| Factory finish | 800 Siaair / Powerhouse Factory Finish |
| Price range | $80–$120 (undrilled) |
Who Should Bowl with a Purple Hammer Today
The Purple Hammer is most useful for: bowlers who already own reactive balls and want a urethane option for specific conditions; competitive bowlers dealing with short or dry patterns where reactive is uncontrollable; players who enjoy the smoother, earlier rolling motion of urethane; and bowlers who simply want to own a piece of bowling history and actually use it.
It is not the best choice for a single-ball beginner — the urethane reaction requires more skill to target correctly than a house-shot reactive ball. But as a second or third ball in an arsenal, the Purple Hammer occupies a specific tactical niche that nothing in the reactive resin world quite replaces.