---
product_id: 46289306
title: "6\" inch 150 mm Grit 1000 Diamond Grinding Disc Abrasive Wheel Coated Flat Lap Disk Jewelry Tools for Gemstone Glass Rock Ceramics"
brand: "joiner"
price: "$30.95"
currency: USD
in_stock: true
reviews_count: 8
category: "Joiner"
url: https://www.desertcart.us/products/46289306-6-inch-150-mm-grit-1000-diamond-grinding-disc-abrasive
store_origin: US
region: United States of America
---

# 1000 grit ultra-fine diamond coating 6 inch (150mm) precision flat lap diameter 1/2 inch arbor hole for secure mounting 6" inch 150 mm Grit 1000 Diamond Grinding Disc Abrasive Wheel Coated Flat Lap Disk Jewelry Tools for Gemstone Glass Rock Ceramics

**Brand:** joiner
**Price:** $30.95
**Availability:** ✅ In Stock

## Summary

> 💎 Elevate your craft with the ultimate fine grit diamond disc!

## Quick Answers

- **What is this?** 6" inch 150 mm Grit 1000 Diamond Grinding Disc Abrasive Wheel Coated Flat Lap Disk Jewelry Tools for Gemstone Glass Rock Ceramics by joiner
- **How much does it cost?** $30.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/46289306-6-inch-150-mm-grit-1000-diamond-grinding-disc-abrasive)

## Best For

- joiner enthusiasts

## Why This Product

- Trusted joiner brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Diamond Density:** 95% diamond coating coverage for unmatched grinding efficiency
- • **Pro-Level Polish:** Fine 1000 grit ensures smooth, professional-grade finishes
- • **Versatile Mastery:** Ideal for gemstones, glass, ceramics, and jewelry crafting
- • **Precision Perfected:** Absolutely flat & parallel surface for flawless faceting
- • **Effortless Integration:** Fits standard 1/2" arbor for quick setup on Master Laps

## Overview

The JOINER 6" Diamond Grinding Disc features a 1000 grit ultra-fine diamond coating on a perfectly flat 150mm steel lap, designed for precision grinding and polishing of gemstones, glass, ceramics, and jewelry. With a 1/2" arbor hole, it fits standard Master Lap machines, delivering professional results with high diamond density and durability—making it a must-have for serious hobbyists and pros aiming for flawless finishes.

## Description

JINGLING 6 inch Diamond Coated Flat Lap Disk Grinding Disc Grit 1000 Fine Product Name: 6 inch diamond grinding wheel, diamond lapidary discs, diamond lapping disc Outside diameter : 6" inch (150mm) Arbor hole : 1/2" (12.7 mm) Thickness : 1.2 mm Grit : 1000 Grit type: Fine Quantity: 1 Piece Diamond coating Density : Perfectly high Diamond coating surface area : almost 95%, only one side is coated diamond Wet use recommended Suitable to grinding gemstone, jewelry, glass, rock, carving knife, etc. These diamond discs are one of the finest discs manufactured for Hobby, Lapidary, Glass applications The diameter flat lap wheels have a high density quality diamond coating They are absolutely flat and parallel to meet the most exacting faceting requirements When used as part of a multi-stage grinding and polishing process it's easy to create smooth finished edges with a professional look Use this fine grit diamond lap pad to smooth and shape pieces and create polished flat surfaces Quick Tips 1. Recommended for rough and fine grinding on faceting material plus general lapidary grinding when precision is required 2. All our flat laps wheels have a 1/2" arbor hole and are intended to be mechanically clamped to a Master Lap 3. The laps are made with 1mm thick steel plate that has been machined true and flat. The lap is stiff enough to be used as is, but we recommend with the use of Aluminum Master Lap Also Available in Grits 60, 80, 100, 150, 240, 320, 400, 500, 600, 800,1000, 1200, 1500, 1800, 2000, 3000

Review: Excellent alternative to 6 inch grinding wheels - I discovered this disc a couple weeks ago when I bought a woodworking lathe and needed to sharpen chisels and shape a high speed steel blank. I made a 3/4 inch x 5 3/4 inch plywood disc with a half inch hole as a backing for the diamond disc and put them together on my 6 inch bench grinder. I always have some wheel wobble because the arbor washers are cheap stamped steel. I get rid of almost all the wheel wobble by inserting paper shims at the appropriate places between the washer and the plywood disc, like balancing a car wheel and tire. Since my grinder doesn't have an arbor lock I use a pair of long nose vise grips to lock on to the grinder shaft when I am tightening and loosening the nut. I bought a really nice pair at Harbor Freight for $6 or $7. Locking the shaft lets me keep the washer and plywood disc stable so I can insert the shims exactly where I need them. Figuring out where to place the shims is easy. I clamped a wood block next to the wheel and rotated the wheel by hand so the block touched the wheel at the point of most wobble. Then I slipped paper shims between the washer and plywood disc on the opposite side. It only takes perhaps 2 or three thicknesses of paper to straighten the wheel. I love grinding on the diamond disc. It works fast and doesn't heat up the steel as fast as a wheel and there is virtually no danger of the tool exploding. My grinder is 3,750 rpms which is faster than I prefer, but the disc surface speed is naturally slower towards the center so you can control metal removal in that fashion.
Review: Great for sharpening carbide lathe tools, gravers, etc - I was skeptical about these at first, but I am completely satisfied. I bought them to run on a slow sleep lapping machine I built - similar to the GRS graver sharpener. I use it for sharpening carbide lathe tools. So far they’ve held up really well, the grit seems uniform, and I’ve been very pleased. I realize they might not last as long as some of the big name ones from Glendo or GRS.. however, given they cost less than $10, and the Glendo ones are like $300 plus it seems well worth it to me! I bought half a dozen of these after trying one out. Love em 🤙

## Features

- Product name: 6 inch diamond disc, diamond lapidary discs, 6" flat lap disc
- Outside diameter: 6" inch (150mm); Arbor hole: 1/2" (12.7 mm); Thickness: 1mm; Grit: 1000(fine)
- Suitable to grinding gemstone, jewelry, glass, rock, carving knife, etc
- These diamond discs are one of the finest discs manufactured for hobby, lapidary, glass applications
- Absolutely flat and parallel to meet the most exacting faceting requirements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B072MP1N3S |
| Best Sellers Rank | #80,811 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #157 in Grinding Discs |
| Brand | JOINER |
| Compatible Devices | Master Lap |
| Construction Type | Coated,grinding |
| Date First Available | January 25, 2019 |
| Grit Material | Diamond |
| Grit Number | 1000 |
| Grit Type | Fine |
| Item Diameter | 150 Millimeters |
| Item Thickness | 1 Millimeters |
| Item Weight | 4.8 ounces |
| Item model number | MP-YX152-1000 |
| Manufacturer | JOINER |
| Product Dimensions | 6"L x 6"W |
| Recommended Uses For Product | Grinding, Polishing |
| UPC | 708747499148 |

## Product Details

- **Brand:** JOINER
- **Compatible Devices:** Master Lap
- **Grit Material:** Diamond
- **Grit Type:** Fine
- **Product Dimensions:** 6"L x 6"W

## Images

![6" inch 150 mm Grit 1000 Diamond Grinding Disc Abrasive Wheel Coated Flat Lap Disk Jewelry Tools for Gemstone Glass Rock Ceramics - Image 1](https://m.media-amazon.com/images/I/418BE+nlUoL.jpg)
![6" inch 150 mm Grit 1000 Diamond Grinding Disc Abrasive Wheel Coated Flat Lap Disk Jewelry Tools for Gemstone Glass Rock Ceramics - Image 2](https://m.media-amazon.com/images/I/41P5EJGHYaL.jpg)
![6" inch 150 mm Grit 1000 Diamond Grinding Disc Abrasive Wheel Coated Flat Lap Disk Jewelry Tools for Gemstone Glass Rock Ceramics - Image 3](https://m.media-amazon.com/images/I/41Sms8kRXrL.jpg)
![6" inch 150 mm Grit 1000 Diamond Grinding Disc Abrasive Wheel Coated Flat Lap Disk Jewelry Tools for Gemstone Glass Rock Ceramics - Image 4](https://m.media-amazon.com/images/I/41cOJVhflgL.jpg)
![6" inch 150 mm Grit 1000 Diamond Grinding Disc Abrasive Wheel Coated Flat Lap Disk Jewelry Tools for Gemstone Glass Rock Ceramics - Image 5](https://m.media-amazon.com/images/I/41lFE6SpkOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent alternative to 6 inch grinding wheels
*by A***. on December 12, 2018*

I discovered this disc a couple weeks ago when I bought a woodworking lathe and needed to sharpen chisels and shape a high speed steel blank. I made a 3/4 inch x 5 3/4 inch plywood disc with a half inch hole as a backing for the diamond disc and put them together on my 6 inch bench grinder. I always have some wheel wobble because the arbor washers are cheap stamped steel. I get rid of almost all the wheel wobble by inserting paper shims at the appropriate places between the washer and the plywood disc, like balancing a car wheel and tire. Since my grinder doesn't have an arbor lock I use a pair of long nose vise grips to lock on to the grinder shaft when I am tightening and loosening the nut. I bought a really nice pair at Harbor Freight for $6 or $7. Locking the shaft lets me keep the washer and plywood disc stable so I can insert the shims exactly where I need them. Figuring out where to place the shims is easy. I clamped a wood block next to the wheel and rotated the wheel by hand so the block touched the wheel at the point of most wobble. Then I slipped paper shims between the washer and plywood disc on the opposite side. It only takes perhaps 2 or three thicknesses of paper to straighten the wheel. I love grinding on the diamond disc. It works fast and doesn't heat up the steel as fast as a wheel and there is virtually no danger of the tool exploding. My grinder is 3,750 rpms which is faster than I prefer, but the disc surface speed is naturally slower towards the center so you can control metal removal in that fashion.

### ⭐⭐⭐⭐⭐ Great for sharpening carbide lathe tools, gravers, etc
*by A***N on June 23, 2020*

I was skeptical about these at first, but I am completely satisfied. I bought them to run on a slow sleep lapping machine I built - similar to the GRS graver sharpener. I use it for sharpening carbide lathe tools. So far they’ve held up really well, the grit seems uniform, and I’ve been very pleased. I realize they might not last as long as some of the big name ones from Glendo or GRS.. however, given they cost less than $10, and the Glendo ones are like $300 plus it seems well worth it to me! I bought half a dozen of these after trying one out. Love em 🤙

### ⭐⭐⭐⭐ Great diamond disc for the $$$
*by E***H on December 9, 2018*

These diamond discs are great for the price. I have a GRS power hone and at 100 bucks a disc it's extremely expensive. I did have to put a master lap or backer behind the discs or even double them up to get rid of any wobble. All in all they are great discs and I've sharpened many gravers already and the discs are still in great shape. I kostly sharpen carbide tools and some hss to give you an idea of what I'm doing with the discs. I imagine I can sharpen more gravers at 10 bucks a disc x10 than I could on 1 disc at 100. I will buy again when needed. And would recommend.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-25*