This tool identifies and eliminates bullet runout (or wobble). Just place ammunition in the tool, roll it, identify runout and use the dial indicator thumbscrew to adjust.

FEATURES:

• Universal centers ensure precise alignment of most bottleneck cartridges from 22 cal up to 45 cal.
• Easy-to-use precision adjustment knobs allow you to true up the runout on any cartridge.
• Identifies and eliminates bullet runout (or wobble)
• Dial indicator thumbscrew for adjustment
• Sturdy frame can be bolted to bench