Can I use this on stone like hard river rock?

So far I have only used it on glass and clay/ceramic. I would strongly advise if you do try it, use water to help with the friction. It says that you can use it on stone , gemstones, rocks, and pebbles. Hopefully that answers your question

what is the chuck size 3/8 or 1/2 , I have 3/8 inch chuck?

I have a dewalt drill with 3/8 in chuck its perfect.

What maximum thickness are these suitable for? What is the thickness of the diamond dust on the smallest three cutters?

I can't tell you in exact dimensions how thick the coating of the cutters are. I can tell you that I cut a hole through a substantial hi-power electrical insulator big enough to run a 120-v plug through. Before using these bits-nothing could touch the ceramics it was made of. The secret to success is to run water on the project while drilling.

What machine can i buy for the drill bits?

and drill will work, cordless or corded

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YLYL Diamond Drill Bits for Ceramic, Diamond Hole Saw Drill Bit Set Kit, Glass Drill Bit for Bottles, Pots, Marble, Granite Stone, Tile Cutting 0.23 Inch - 2 Inch (6 mm - 50 mm) Pack of 15

Product ID: 318561496

Details

Brand
YLYL
Finish type
Diamond
Material
Diamond Glass
Shank type
Straight
Tool flute type
Spiral

💎15 precision diamond-tipped sizes

💧Water lubrication for extended bit life

🛠️Industrial-grade carbon steel core

E£ 2887

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Description

💎 Drill Like a Pro, Shine Like a Boss!

COOL CLEAN DRILLING - Large clearance holes optimize water flow and chip removal, ensuring smooth, effortless drilling every time.
MULTI SURFACE MASTERY - Effortlessly tackle glass bottles, porcelain tiles, granite slabs, and even wood—your all-in-one hole-making solution.
VERSATILE 15 SIZE RANGE - From delicate 6mm to robust 50mm, drill perfect holes in glass, ceramic, marble, and granite with unmatched precision.
PRO GRADE ACCURACY LONGEVITY - High-speed steel base combined with diamond tips guarantees clean, accurate holes and extended tool life with proper lubrication.
PREMIUM DIAMOND TIPPED DURABILITY - Engineered with industrial-grade carbon steel and diamond points for sharp, wear-resistant performance that lasts.

The YLYL Diamond Drill Bits Set features 15 precision sizes (6mm to 50mm) crafted from industrial-grade carbon steel with diamond tips, designed for clean, accurate holes in hard surfaces like ceramic, glass, marble, and granite. Its large clearance holes facilitate water cooling and chip removal, extending bit life and ensuring smooth drilling. Ideal for professionals and DIY enthusiasts seeking durability, versatility, and flawless results.

Specifications

ASIN	B08MCG68XG
ASIN	B08MCG68XG
Best Sellers Rank	#11,746 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Hole Saws & Accessories
Brand Name	YLYL
Customer Reviews	4.3 4.3 out of 5 stars (4,020)
Customer reviews	4.3 4.3 out of 5 stars (4,020)
Date First Available	10 January 2021
Finish Types	Diamond
Item model number	YLYL011
Manufacturer	YLYL
Manufacturer	YLYL
Material Type	Diamond,Glass,Marble
Minimum Bore Diameter	0.31 Inches
Model	YLYL011
Number of Flutes	1
Number of Packs	1
Number of Pieces	15
Package Dimensions	13.79 x 9.7 x 5.31 cm; 322 g
Part Number	YLYL011
Point Style	Diamond Point
Set Name	Diamond Drill Bit Set
Shank Type	Straight
Surface Recommendation	Ceramic, Glass, Porcelain
Tool Flute Type	Spiral
UPC	739944296209
Unit Count	15 Count

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E£ 2887

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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