• Rock Tumbler Polishing Grit Kit
  • Rock Tumbler Polishing Grit Kit
  • Rock Tumbler Polishing Grit Kit
  • Rock Tumbler Polishing Grit Kit
  • Rock Tumbler Polishing Grit Kit
  • Rock Tumbler Polishing Grit Kit
  • Rock Tumbler Polishing Grit Kit
  • Rock Tumbler Polishing Grit Kit
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Rock Tumbler Polishing Grit Kit

Rock Tumbler Polishing Grit Kit

$21.99 NZD
$21.99 NZD $30.99 NZD
30% OFF
Processing 1-2 working days - order before 12PM leaves same day
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  • In stock – ready to ship from NZ
  • Processing 1–2 working days – order before 12PM and it leaves the same day
  • Delivery 2–4 working days – rural addresses add 1–2 working days
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Shipping & Delivery
  • Processing time: 1–2 working days. Orders placed before 12PM (NZT) on a working day leave our warehouse the same day.
  • Delivery time: 2–4 working days for non-rural addresses. Rural delivery addresses take an extra 1–2 working days.
  • Shipped from our New Zealand warehouse – no overseas delays or customs fees.
  • Smaller items go by courier, bulky items by freight. You’ll get a tracking number by email once your order ships.
  • Shipping cost is calculated at checkout from your address.
Full shipping information
Warranty & Returns
  • 14-day returns: unused, in the original condition and packaging.
  • Faulty or damaged: we repair or replace it first; if we can’t, you get a refund to your original payment method.
  • Change of mind: a 20% restocking fee applies (minimum $5), refunded as a store gift card. Return shipping is paid by the customer.
  • Your rights under the Consumer Guarantees Act 1993 are always protected.
Full returns policy
Need help?

Our New Zealand team is happy to help with product questions, orders and delivery.

  • Email: order@grabstore.co.nz
  • Hours: Monday–Friday, 9AM–5PM NZT (closed weekends and public holidays)
  • We usually reply within 1–2 working days.
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Description

Rock Tumbler Grits Kit – 12000 Grit Aluminum Oxide Rock Tumbler Polishing Grit Step 5 Final Polish Refill 0.45kg

This Rock Tumbler Grits Kit refill is a 12000 grit aluminum oxide ultra-fine high gloss polishing powder (0.45kg) for the final stage (Step 5) of rock tumbling, for rocks, gems, glass and jewelry making. This Rock Tumbler Polishing Grit has a sub-micron formula that reduces residual surface marks left by coarser grits, and this Rock Tumbler Grits Kit polish delivers the highest gloss achievable in a rock tumbler.

 

Key Features

  • Step 5 Final Polish – Rock Tumbler Grits Kit 12000 grit aluminum oxide for maximum shine
  • Sub-Micron Formula – Rock Tumbler Polishing Grit reduces residual marks left by coarser grits
  • Deep Brilliant Luster – Standard Step 5 polishes can't match this luster
  • Higher Gloss Than 8000 Grit – Rock Tumbler Grits Kit best finish your tumbler can deliver
  • Step 5 or Step 6 – Use as Step 5 from the start, or as Step 6 after 8000 grit for a two-stage final polish
  • Maximum Shine – Rock Tumbler Polishing Grit achievable in rotary or vibrating tumblers, no additional equipment needed
  • High-Purity Aluminum Oxide – Rock Tumbler Grits Kit trusted by lapidary professionals for consistent, repeatable results
  • Wide Material Use – Rocks, gemstones, quartz, agate, glass and jewelry components
  • Better Value – Reliable high-performance alternative to tin oxide and cerium oxide polishes
  • All Tumblers – Rock Tumbler Polishing Grit works with rotary and vibrating rock tumblers of all brands
  • Beginner or Advanced – Versatile addition to any rock tumbling setup
  • Easy to Use – Add approx. 2 tablespoons of polish per 0.45kg of stones, add enough water to just cover the stones and run for around 3–5 days

 

Applications

  • Rock Tumbler Grits Kit final polish for rocks, gems, glass and jewelry making
  • Two-stage final polish with 12000 grit after 8000 grit as Step 6 for maximum shine

 

Note: Results may vary depending on stone type, hardness, tumbler model, and polishing time.

 

12000 grit, aluminum oxide, sub-micron, Step 5 or Step 6, rotary and vibrating tumblers, 0.45kg refill — the complete ultra-fine high gloss final polish for rock tumbling.