--- product_id: 650250805 title: "1 LB per Polish Sub Micron Aluminum Oxide 12,000 Extreme Polish Rock Grit Stage 4 | USA" brand: "mjr tumblers" price: "VT20344" currency: VUV in_stock: true reviews_count: 9 category: "Mjr Tumblers" url: https://www.desertcart.vu/products/650250805-1-lb-per-polish-sub-micron-aluminum-oxide-12-000 store_origin: VU region: Vanuatu --- # 12,000 grit ultra-fine polish 1 lb precision polish Proudly USA made 1 LB per Polish Sub Micron Aluminum Oxide 12,000 Extreme Polish Rock Grit Stage 4 | USA **Brand:** mjr tumblers **Price:** VT20344 **Availability:** ✅ In Stock ## Summary > ✨ Elevate your polish game to pro-level brilliance! 🇺🇸 ## Quick Answers - **What is this?** 1 LB per Polish Sub Micron Aluminum Oxide 12,000 Extreme Polish Rock Grit Stage 4 | USA by mjr tumblers - **How much does it cost?** VT20344 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/650250805-1-lb-per-polish-sub-micron-aluminum-oxide-12-000) ## Best For - mjr tumblers enthusiasts ## Why This Product - Trusted mjr tumblers brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Shine Upgrade:** Transform dull rocks in just 4 days with a simple second polish step—no fizzing, easy rinsing, and stunning results. - • **Comprehensive User Support:** Includes free, easy-to-follow rock polishing instructions with expert tips to ensure your success every time. - • **Unmatched Ultra-Fine Polish:** 12,000 grit sub micron aluminum oxide delivers a mirror-like shine that outperforms standard 1,200-1,500 grit competitors by 10x. - • **Veteran & Disabled Owned Excellence:** Support a proud American company based in Pecatonica, Illinois, committed to quality and community. - • **Perfect for Professionals & Hobbyists:** Ideal for aluminum and other materials, this 1 lb pack is the ultimate finishing touch for serious tumblers. ## Overview MJR Tumblers 12,000 grit Sub Micron Aluminum Oxide Polish is a premium, ultra-fine polishing grit designed to deliver superior shine and finish on rocks and metals. Proudly made in the USA by a veteran and disabled-owned company, this 1 lb pack offers unmatched polishing power that outperforms standard grits by tenfold, backed by clear instructions and expert tips for flawless results. ## Description MJR Tumblers 1 LB per Polish Sub Micron Aluminum Oxide 12,000 Extreme Polish Rock Grit Stage 4 | USA : desertcart.co.uk: Business, Industry & Science Review: Amazing shine, better than step 4 in kits - I’m new to rock tumbling and for my first batch used the grits that came with my tumbler. After the full 4 week process I wasn’t happy with the shine, so I sought out a better product for a final polish rather than resorting to mineral oil and faking it. The difference this made with 4 days as a second final polish was amazing, even basalt has come up with a shine. I added a spoonful of baking soda to the barrel with this and there was no fizzing/pressure, and rinsing off was easy and quick. I’ve not tried this as step 4 (rather than adding a second polish as step 5) but will do on my next batch. Review: Great finish 🪞 - Only used on 1 barrel of “beach rocks” so far but very impressed with the level of polish it provides, used 80-200-600-1200 grits a week at a time then a final polish with this, Much Much better finish than just the “standard” 4 stages of rock tumbling provides. ## Features - There is No comparison in the results between MJR Tumbler's Exclusive 12,000 grit Sub Micron Extreme Aluminum Oxide Polish and our competitors 1,200 grit or 1,500 grit Aluminum Oxide. 12,000 grit is ten times finer than 1,200 grit with ten times better results! - MJR Tumbler’s Exclusive 12,000 Grit Sub Micron Extreme Aluminum Oxide Polish is the best polish you can buy! - No other polish even comes close to our results. - If you want the best, MJR Tumblers 12,000 Grit Sub Micron Aluminum Oxide Extreme Polish is what you need! - MJR Tumblers is a Disabled and Veteran Owned Company! - Free and easy to understand rock polishing instructions with lots of tips and tricks are included with every purchase from MJR Tumblers! - MJR Tumblers is Proud to be an American company located in Pecatonica Illinois in the good ole USA! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D4PLX9YP | | Best Sellers Rank | 49,286 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 27 in Tumbling Media | | Brand | MJR Tumblers | | Compatible Material | Aluminium | | Customer Reviews | 4.7 4.7 out of 5 stars (99) | | Grit Material Type | Aluminium Oxide | | Grit Number | 12000 | | Grit Type | Fine | | Item Weight | 454 g | | Manufacturer | MJR Tumblers | | Material | Aluminium Oxide | | Unit Count | 1.0 Count | ## Product Details - **Brand:** MJR Tumblers - **Grit material:** Aluminium Oxide - **Grit type:** Fine - **Item weight:** 454 g - **Material:** Aluminium Oxide ## Images ![1 LB per Polish Sub Micron Aluminum Oxide 12,000 Extreme Polish Rock Grit Stage 4 | USA - Image 1](https://m.media-amazon.com/images/I/61nvojo7R0L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Amazing shine, better than step 4 in kits *by A***M on 7 November 2025* I’m new to rock tumbling and for my first batch used the grits that came with my tumbler. After the full 4 week process I wasn’t happy with the shine, so I sought out a better product for a final polish rather than resorting to mineral oil and faking it. The difference this made with 4 days as a second final polish was amazing, even basalt has come up with a shine. I added a spoonful of baking soda to the barrel with this and there was no fizzing/pressure, and rinsing off was easy and quick. I’ve not tried this as step 4 (rather than adding a second polish as step 5) but will do on my next batch. ### ⭐⭐⭐⭐⭐ Great finish 🪞 *by C***G on 8 November 2025* Only used on 1 barrel of “beach rocks” so far but very impressed with the level of polish it provides, used 80-200-600-1200 grits a week at a time then a final polish with this, Much Much better finish than just the “standard” 4 stages of rock tumbling provides. ### ⭐⭐⭐⭐⭐ A great Polish *by P***! on 11 September 2025* A GREAT PRODUCT WHICH DOES WHAT IT SAYS IT WILL DO. 100*/100* ## Frequently Bought Together - 1 Pound of MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Rock Polishing Powder. for Unparalleled Quality and Performance. A Disabled and Veteran Owned Company! - 4lb 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 - 10 lbs Rock Tumbler Grit - Tumbler Media Grit,Rock Polishing Grit Media, Works with Any Rock Tumbler, Rock Polisher, Stone Polisher,COARSE 60/90 Silicon Carbide Grit, Step 1 for Tumbling Stones --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/650250805-1-lb-per-polish-sub-micron-aluminum-oxide-12-000](https://www.desertcart.vu/products/650250805-1-lb-per-polish-sub-micron-aluminum-oxide-12-000) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-03*