Bowler Ratings


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

Note: Ratings are only available to our premium members.

General Info

Reviewed:June 2017
Coverstock Specs
Name:NBT Hybrid
Type:Reactive Hybrid
Box Finish:500 / 2000 Abralon
Color:Black / Red / Orange
Core Specs
Int. Diff:0.000

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

The Diesel powers back into the Hammer lineup this summer, joining the Rebel and Rebel Solid as the three reactive resin balls at Hammer’s mid-performance price point. This new Diesel has been revamped both inside and out. The new Diesel weight block had to be modified from the cores used in the original Diesel line to meet the USBC’s current RG and differential limits. The new core shape has a medium RG of 2.51″ and moderate differential of 0.046″, allowing it to offer nearly five inches of track flare. The coverstock has been updated to the NBT Hybrid veneer that has been used previously in several of Hammer’s high performance and upper-mid performance balls in recent years. The Diesel comes out of the box at a 500/2000 Abralon finish, giving it the ability to chew through any oil it saw during our testing.

We had the best line to the pocket with the Diesel on our heavy oil test pattern. Stroker and Cranker had just a slightly better reaction than Tweener on this pattern. Stroker was able to play right up the track area, laying his ball down on 12. As long as he stayed inside

Additional Hammer Diesel Resources

Click here to visit Hammer's website to read the manufacturer-supplied information on this ball. Also, see below for the manufacturer-produced promotional video for this ball.

Please remember that our reviews are solely based on our own testing and that you may sometimes find differences between our comments and ratings and the manufacturer's claims. Links to these manufacturer resources are provided here strictly for convenience purposes.

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.