What size is the shank? Will they fit a 1/4inch drill?

The shaft of the diamond bit is just a bit bigger than a 1/4 like 5/16 if that’s what you are asking. Must use a drill that is adjustable to accept the round shaft.

Will it work on an alluminum 1/8" sheet?

Hello, Diamond hole saw will not work on alluminum. Maybe carbide burr set will work on alluminum.

Can these work on wood? I have an old rusted screw that snapped off inside a chair leg.

Not likely. These bits are like a hole saw - an empty shell that cuts on the outside diameter only. Get a screw extractor bit for that size screw, chuck it in power drill, set drill to reverse and let it go into the screw and remove it automatically.

Can I use to drill hole ~ an inch or two wide on mirrored glass?

No, it not going to work. Must be a drill designed for glass.

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Diamond Drill Bits Set, 10 PCS Diamond Hole Saw Set, Glass Drill Bit for Ceramic Tile Porcelain Marble Granite Stone Bottles

Product ID: 445447312

Details

Cutting Angle String
6E+1 degrees
Cutting Diameter
40.64
Finish Type
Nickel
Material
Carbon Steel
Shank Type
Straight

💎Diamond-coated for ultra-precision

🔩10 versatile hole saw sizes

🛡️Corrosion-resistant nickel plating

€ 24.98

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Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Drill like a pro, cut like a boss.

BUILT TO LAST - Upgraded carbon steel core with nickel plating resists corrosion and edge collapse.
MULTI SURFACE MASTERY - Effortlessly drills glass, ceramic, porcelain, marble, granite, and even bottles.
PRECISION MEETS POWER - Diamond coating ensures razor-sharp, smooth cuts on the toughest surfaces.
PRO TIP FOR LONGEVITY - Keep water flowing during use to boost bit life and maintain peak performance.
ALL IN ONE VERSATILITY - 10 size options from 1/4" to 1-1/5" cover every drilling need with ease.

The Semderm 10 PCS Diamond Drill Bits Set features premium diamond-coated carbon steel bits with corrosion-resistant nickel plating. Designed for precision and durability, this versatile kit includes 10 sizes to tackle glass, ceramic, porcelain, marble, granite, and more. Ideal for professionals and DIY enthusiasts seeking smooth, high-efficiency drilling with extended bit life when used with water lubrication.

Specifications

ASIN	B0B24RXXDJ
Best Sellers Rank	#6,722 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #5 in Hole Saw Sets & Kits
Brand Name	Semderm
Customer Reviews	4.4 4.4 out of 5 stars (2,081)
Cutting Angle String	6E+1 degrees
Cutting Diameter	40.64 millimeters
Finish Types	Nickel
Item Weight	1 g
Manufacturer	Semderm
Material Type	Carbon Steel
Minimum Bore Diameter	6.35 millimeters
Model	Semderm0001
Number of Flutes	2
Number of Pieces	10
Part Number	Semderm0001
Point Style	Diamond Point
Set Name	10 PCS Diamond Hole Saw Set
Shank Type	Straight
Surface Recommendation	Glass, Ceramic, Porcelain, Stone
Tool Flute Type	Straight
UPC	605500325624
Unit Count	10 Count

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