Bowler Ratings


Bowler ratings are from 1 to 10 in order of Stroker (ST), Tweener (TW), Cranker (CR)

General Info

Reviewed:December 2012
Coverstock Specs
Name:Grand Theft Reactive III
Type:Reactive Pearl
Box Finish:800 Abranet / 1000 /2000 Abralon / Powerhouse Factory Finish Polish
Color:Red / Gold / Purple
Core Specs
Int. Diff:0.008

For details on our standard test layouts, please click here.

The Hammer Wrench is the latest tool added to the upper mid performance line. This is the first pearlized cover in this line since the Epidemic. The Wrench adds a pearlized version of Grand Theft III Reactive from the Jet Black Taboo and a modified version of the Mirror Plane asymmetric core.

This combination gave the Wrench a strong skid/flip reaction on our medium test pattern. The cover gave us more length than the Ratchet with a sharper move at the breakpoint. Our two testers with higher rev rates, who like to go more left to right, really liked the reaction on this pattern. We had enough traction in the oil and a strong, violent move when the ball saw dry.

Cranker and Tweener both liked the Wrench more on the heavy test pattern than Stroker did. All three bowlers removed the polish with a 3000 Abralon pad to give it some extra traction. With the cover adjustment, we saw a much earlier breakpoint, making the Wrench easier to control on this slicker pattern.

The sport pattern gave an average reaction to Stroker and Tweener at the box finish. Both these players were much more comfortable with the Wrench with the polish removed from it by a 2000 Abralon pad. The pearl in the cover still gave them moderate length, while the added surface controlled the breakpoint better. Cranker kept it at the box finish and liked it better than he did with the polish removed. At the rougher finish, he saw the Wrench try to start too early, giving him early hook or weak hits when he got to the pocket.

On the dry test pattern, only Stroker was able to control the big back end of  the Wrench on this shorter pattern. Tweener and Cranker both removed the polish with a 4000 Abralon pad to get it to use up some energy earlier on the lane. With the polish removed, these testers were able to boost their ball speeds and play farther outside, allowing the Wrench to be more controlled as it came out of the pattern.

Performance Ratings

The pearlized cover on this ball offers a much more angular breakpoint than the Ratchet and Brick. Hammer fans who want to see a big back end movement will like the Wrench.
EBI has found the right combination of underlying grit and polish to make their shells less sensitive to oil. The Wrench’s 2000 and Powerhouse Factory Finish still gives the ball enough bite to keep from throwing it through the pin curtain.
Back End17.5
The length and torque at the breakpoint sets the ball up for a big back end reaction. It easily falls into the skid/flip category of ball reaction.
Total Hook50
The shiny box finish keeps the total hook rating down. The move at the back end more than makes up for covering less overall boards. For us, the total hook was still plenty for our test patterns.


We are not exaggerating the back end move this ball makes when it exits the pattern. The skid/snap reaction is the Wrench’s biggest strength.


Only oil patterns that are both heavy and long will keep the Wrench from being used. Pull out a Brick or Taboo Deep Purple for those types of conditions.

Overall Summary

The Wrench is a great addition to the upper mid price line. The Wrench is the ball to go to when the Brick, Ratchet, or Taboo are starting to hook too much, too early.

The BTM Ball Testing Team

About The BTM Ball Testing Team

The BTM Ball Testing Team is led by Eric Martinez. Our team of three testers has thrown and reviewed hundreds of bowling balls for Bowling This Month. When not testing balls for BTM, Eric owns and operates University Pro Shop in San Antonio, TX and he is an avid competitive bowler. Click here to learn more about how we test and review bowling balls.