what is the shank size?

Not sure but it will fit in any standard 3/8 drill (about the size of a #2 pencil) You probably have one in the garage lol.

Can these bits drill holes in both ceramic and more so porcelain tiles successfully???

I can't speak for the porcelain tiles, but I've used the bits for ceramic, glass, and a composite stone kitchen sink. Worked like a champ.

Want to drill granite countertop that is 1 1/4 inches thick. The specs for this bit say it will drill 1" deep. How do I drill to the depth needed?

I don't think these drills will work, unless you can find some way to drill the last 1/4 from the other side and make the holes match. The drills have a habit of sliding until the hole is started. I drilled a same/size hole in a piece of wood and placed the wood hole where I wanted to drill. The wood held the bit in place until I got the hole started.

looking to see if these will cut good holes in glass blocks

I used them to drill holes in Patron Bottles worked really well for that. Don't know how thick your glass blocks are but they are quality bits I would give them a try if it was me! I would put a piece of paper tape on area to be drilled to keep it from chipping and keep the glass wet! You should be fine.

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Drilax 10-Pc Diamond Hole Saw Kit with Guide & Case (5/32 inch to 1 inch) for Tile, Glass, Porcelain & Granite – Clean Cut Drill Bits for DIY, Plumbing & Crafts

Drilax 10-Pc Diamond Hole Saw Kit with Guide & Case (5/32 inch to 1 inch) for Tile, Glass, Porcelain & Granite – Clean Cut Drill Bits for DIY, Plumbing & Crafts

Product ID: 16094404

Details

Brand
DRILAX
Finish Type
Diamond
Item dimensions L x W x H
3 x 4 x 3
Material
Alloy Steel
Shank Type
Straight

💎Diamond cutting edge for ultra-smooth holes

📏10 precision sizes from 5/32" to 1"

🧊Water-cooled drilling for longer bit life

NT$2053

Duties & taxes included

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Sold byAmazon TaiwanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Drill like a pro, finish like an artist.

SLIP FREE START - Innovative positioning guide stabilizes bits on slippery surfaces, ensuring accuracy and reducing scratches.
COOL LAST LONGER - Water-assisted drilling keeps bits sharp and cool, extending tool life and saving you money.
PRECISION PERFECTED - 10-piece kit with sizes for every project, from delicate glass to tough granite.
VERSATILE DIY ESSENTIAL - From planters to countertops, this kit powers your creativity across plumbing, crafts, and home upgrades.
FLAWLESS FINISH EVERY TIME - Diamond edges grind clean holes without chips or cracks—because your work deserves perfection.

The Drilax 10-Pc Diamond Hole Saw Kit offers a comprehensive range of 10 diamond-tipped drill bits (5/32" to 1") designed for clean, chip-free holes in tile, glass, porcelain, and granite. Featuring a positioning guide for slip-free starts and a durable storage case, this kit supports wet drilling to enhance bit longevity and precision—ideal for professional-grade DIY, plumbing, and craft projects.

Specifications

ASIN	B00XAWU14U
Best Sellers Rank	#47,311 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #24 in Hole Saw Sets & Kits
Brand Name	DRILAX
Customer Reviews	4.5 4.5 out of 5 stars (4,691)
Finish Types	Diamond
Included Components	Case, Guide, 10 pcs Diamond Hole Saw Diamond Drill Bit Set
Item Dimensions	3 x 4 x 3 inches
Item Weight	6 Ounces
Manufacturer	DRILAX
Material Type	Alloy Steel
Minimum Bore Diameter	0.38 Inches
Model	DRILAX100425
Number of Flutes	3
Number of Pieces	10
Part Number	DX100750
Point Style	Diamond Point
Set Name	Drilax 10-Pc Diamond Drill Bit Set
Shank Type	Straight
Surface Recommendation	Glass
Tool Flute Type	Straight
UPC	046737340101
Unit Count	1 Count

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