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MJR Tumblers Premium 400/600 Grit Aluminum Oxide Rock Polishing Grit

MJR Tumblers ★ 3.3/5 · ItemOracle Score Mid-Range

$70 USD
Price subject to change
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20lb of MJR Tumblers Premium 400/600 Pre-Polish Aluminum Oxide Rock Polishing Grit for Step/Stage 3, MJR Tumblers is a Disabled and Veteran Owned Company Proudly Located in USA

Premium 400/600 grit aluminum oxide for third-stage shaping of stones. Compatible with any rock tumbler; American-owned and USA-based. One customer notes it refills the final polishing step well

Highlights

  • premium 400/600 grit
  • works with any tumbler
  • usa-owned company

Pros

  • premium quality 400/600 grit
  • compatible with any brand of rock tumbler
  • third stage shaping performance
  • american-owned company

Cons

  • mixed polishing results reported by customers
  • some users report matte finish instead of shine
  • mixed value for money

Best For

  • rock polishing projects
  • final shaping of stones
  • tumbler hobby kits
  • refill for polishing stage
  • usa-made accessory

Features

  • 400/600 grit aluminum oxide for third-stage shaping of stones
  • Compatible with any brand of rock tumbler
  • 20 lb package of premixed tumbling grit for stage 3 processing

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