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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💎 Drill Like a Pro, Shine Like a Diamond!

COMPLETE SIZE RANGE - 10 drill bit sizes from 1/4" to 1-1/5" to fit all your drilling needs.
MULTI SURFACE MASTERY - Perfect for porcelain, marble, granite, ceramic, bottles, and more—one set, endless possibilities.
PRECISION DIAMOND EDGE - Cut through glass, tile, and stone with razor-sharp accuracy.
CORROSION RESISTANT BUILD - Upgraded carbon steel with nickel plating ensures long-lasting performance.
SMOOTH EFFICIENT DRILLING - Large clearance holes optimize water flow and chip removal for effortless use.

This 10-piece Diamond Drill Bits Set features premium diamond-coated carbon steel bits with nickel plating for corrosion resistance. Designed for precision drilling on hard surfaces like glass, ceramic, porcelain, marble, and granite, it includes a versatile range of sizes (1/4" to 1-1/5") and large clearance holes for efficient water cooling and chip removal, ensuring durability and smooth performance.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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€ 52.50

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Netherlandsstore

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Manufacturer	Semderm
Part number	Semderm0001
Item Weight	1 g
Package Dimensions	13.2 x 11.8 x 3.7 cm; 1 g
Item model number	Semderm0001
Color	10 PCS(1/4"-1 1/5")
Style	Modern
Finish	Carbon Steel,Nickel
Material	Marble,Glass,Nickel,Porcelain,Carbon Steel,Stone,Diamond
Item Package Quantity	1
Number Of Pieces	10
Batteries Included?	No
Batteries Required?	No

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

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