This convenient spine tester mounts on your wall saving your bench space.
Engineered from quality steel and brass, calibrated to give spine and deflection reading equivalent to a full size spine tester. The ACE spine master 203 reads 25 to 100 lb spine and .200 to .900″ of deflection.
Works with shafts 5/16 to 23/64 diameter. Optional 1/2 lb. weight allows readings down to 12.5 lbs.
Place an arrow as shown in photo and zero by turning cam and hang weight.







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