---
product_id: 51642811
title: "RUBI | Dry Drilling in Ceramic, Porcelain, Natural Stone and Other Material | Operating Speed 14,000 r.p.m | DRYGRES DRILL BIT Ø3/4\" (20 MM.)"
brand: "rubi"
price: "434.45 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Rubi"
url: https://www.desertcart.tn/products/51642811-rubi-dry-drilling-in-ceramic-porcelain-natural-stone-and-other
store_origin: TN
region: Tunisia
---

# Diamond-tipped for ultimate durability Up to 14,000 rpm max speed M14 thread for direct grinder fit RUBI | Dry Drilling in Ceramic, Porcelain, Natural Stone and Other Material | Operating Speed 14,000 r.p.m | DRYGRES DRILL BIT Ø3/4" (20 MM.)

**Brand:** rubi
**Price:** 434.45 DT
**Availability:** ✅ In Stock

## Summary

> 💎 Drill like a pro, finish like a boss.

## Quick Answers

- **What is this?** RUBI | Dry Drilling in Ceramic, Porcelain, Natural Stone and Other Material | Operating Speed 14,000 r.p.m | DRYGRES DRILL BIT Ø3/4" (20 MM.) by rubi
- **How much does it cost?** 434.45 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/51642811-rubi-dry-drilling-in-ceramic-porcelain-natural-stone-and-other)

## Best For

- rubi enthusiasts

## Why This Product

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

## Key Features

- • **Speed Meets Endurance:** Operates at 14,000 rpm delivering fast cuts and up to 40 holes per bit lifespan.
- • **Compact & Ready to Use:** Single 20mm bit supplied in blister pack—perfect for targeted, professional jobs.
- • **Precision Dry Drilling:** Engineered for flawless holes in ceramic, porcelain, and natural stone without water mess.
- • **Grinder-Ready M14 Thread:** Seamlessly connects to angle grinders or drills with adapter for versatile use.
- • **Effortless Tile Installation:** Save hours on bathroom and kitchen projects with smooth, chip-free drilling.

## Overview

The RUBI DRYGRES 20mm diamond drill bit is a high-performance dry cutting tool designed for ceramic, porcelain, and natural stone. Featuring a durable diamond tip and M14 thread, it connects directly to grinders or drills (with adapter) for fast, precise holes at speeds up to 14,000 rpm. Ideal for professional-grade tile installation, it offers an average lifespan of 40 holes, making it a must-have for efficient, chip-free drilling.

## Description

Product Description The 20mm diamond drill bit is suitable for drilling holes to fix accessories in bathrooms. This product is for dry use on an electric angle grinder or drill (using an adapter ref: 05976) . The average life of this product is approx 40 holes and can be used to drill holes in porcelain and natural stone. Box Contains 1 x Rubi Dry Cutting Diamond Drill Bit - 20 mm

Review: Amazing and the only way to drill multiple holes in ceramic tiles - This is amazing and saves you hours of time and toil trying to drill into ceramic tiles. Originally used a bit from elsewhere and after 20mins of slow drilling and a hot bit I got half way through so I gave up ordered this on prime and the next day I drilled 5 holes in less than 3 mins. Will need a cheap angle grinder to connect it to. Only issue this is the smallest bit they do and some of my shower fittings had tiny raw plugs and the hole may be too large. They also do an expensive set with multiple size bite but a chose to buy the size I needed and save £50.
Review: Top hole saw - Awesome drill bit ,put it on a cordless grinder and it zips through

## Features

- 💎 Diamond drill bits are made for dry cutting and can be used, thanks to their connection with a M14 thread, directly with a grinder or non-percussive power drill, by using the drill adaptor (ref. 05976).
- 📏 For drilling holes in tiles. Ø 3/4" (20 MM.)
- ⚠️ Maximum operating speed 14,000 rpm M14 thread finish. Usable with grinder (direct connection) or electric drill (adapter ref. 05976). Supplied in blister.
- 💧 DRYGRES diamond drill bits are made for dry cutting and can be used, thanks to their connection with a M14 thread, directly with a grinder or non-percussive power drill, by using the drill adaptor (ref. 05976).
- ⏰ The average life of the DRYGRES drill bits varies according to the diameter. In diameters of 6-12 mm the average life is 25 holes and in the DRYGRES from 20-75 mm the average life is 60 holes.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003DE5IQ6 |
| Best Sellers Rank | 163,223 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,276 in Drill Bit Sets |
| Brand | RUBI |
| Customer Reviews | 4.5 out of 5 stars 270 Reviews |
| Cutting Diameter | 20 millimeters Millimetres |
| Cutting diameter | 20 millimeters Millimetres |
| Finish Types | Uncoated |
| Finish type | Uncoated |
| Global Trade Identification Number | 08413797049107 |
| Included Components | DRY Cut Diamond Drill Bit 20mm |
| Item Dimensions | 15 x 15 x 10 centimetres |
| Item Type Name | 20mm Diamond Drill Bit (Dry) |
| Item dimensions L x W x H | 15 x 15 x 10 centimetres |
| Manufacturer | RUBI |
| Manufacturer Part Number | 4910 |
| Material | Diamond |
| Minimum Bore Diameter | 20 Millimetres |
| Model Number | 4910 |
| Number of Flutes | 2 |
| Number of Pieces | 1 |
| Point Style | Diamond Point |
| Shank Type | Straight |
| Shank type | Straight |
| Surface Recommendation | Ceramic |
| Tool Flute Type | Spiral |
| Unit Count | 1.0 count |

## Images

![RUBI | Dry Drilling in Ceramic, Porcelain, Natural Stone and Other Material | Operating Speed 14,000 r.p.m | DRYGRES DRILL BIT Ø3/4" (20 MM.) - Image 1](https://m.media-amazon.com/images/I/51Yrdthwg8L.jpg)
![RUBI | Dry Drilling in Ceramic, Porcelain, Natural Stone and Other Material | Operating Speed 14,000 r.p.m | DRYGRES DRILL BIT Ø3/4" (20 MM.) - Image 2](https://m.media-amazon.com/images/I/71Nn1bhpMZL.jpg)
![RUBI | Dry Drilling in Ceramic, Porcelain, Natural Stone and Other Material | Operating Speed 14,000 r.p.m | DRYGRES DRILL BIT Ø3/4" (20 MM.) - Image 3](https://m.media-amazon.com/images/I/81cN3FzeKqL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing and the only way to drill multiple holes in ceramic tiles
*by G***B on 8 October 2017*

This is amazing and saves you hours of time and toil trying to drill into ceramic tiles. Originally used a bit from elsewhere and after 20mins of slow drilling and a hot bit I got half way through so I gave up ordered this on prime and the next day I drilled 5 holes in less than 3 mins. Will need a cheap angle grinder to connect it to. Only issue this is the smallest bit they do and some of my shower fittings had tiny raw plugs and the hole may be too large. They also do an expensive set with multiple size bite but a chose to buy the size I needed and save £50.

### ⭐⭐⭐⭐⭐ Top hole saw
*by R***H on 11 October 2025*

Awesome drill bit ,put it on a cordless grinder and it zips through

### ⭐⭐⭐⭐⭐ Great drilling bit.
*by D***G on 16 July 2024*

Not much to dislike except for the price as they only tend to last 4 to 6 holes in 20mm porcelain tiles, that said they do the job really well. Although they have wax in them which melts to keep them cool we also used water.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-28*