Weight
              16 pounds
          Notes
              16lb Used
 
PBA Approval Date
              Release Date
              Discontinued
      
            
      
            In the 1980’s, Hammer was known as “Faball Enterprises” and was the industry leader in urethane technology and performance. Over the past few years, we have gone back to our roots and brought back the Black and Purple Pearl Urethane. Hammer is excited to bring this same trusted urethane formula to the Black Widow line and wrap it around our most iconic core. This combination will give you more overall hook than traditional urethane while maintaining the predictability that a urethane coverstock provides.
Factory Finish
              360/500/500 Abralon
          Urethane Coverstock
Type
              Urethane Solid
          Gas Mask Core
 
The Gas Mask core is the most iconic weight block in bowling. It is known for its large flare potential, versatility amongst bowling styles and its backend bite.
Core Type
              Asymmetric
          16 pounds
RG
              2.510
          Diff
              0.048
          MB Diff
              0.015
          15 pounds
RG
              2.500
          Diff
              0.058
          MB Diff
              0.016
          14 pounds
RG
              2.500
          Diff
              0.056
          MB Diff
              0.016
          13 pounds
RG
              2.589
          Diff
              0.043
          MB Diff
              0.011
          12 pounds
RG
              2.612
          Diff
              0.043
          MB Diff
              0.011
          