Can this punch break a 1/4" thick tempered glass table top?.

Here's the thing about tempered glass: it's incredibly strong because it's under distributed compression, like pre-stressed concrete, but by the same token it's incredibly fragile in that its own internal tension, released anywhere on the sheet, will destroy it, often dramatically. The smart way to break tempered glass (if there is a smart way, or any reason, to break tempered glass) is by dropping a brick on it from 3 stories up when it's in a deep dumpster, because those little glass cubes will fly everywhere. If you really want to be standing next to it when it explodes, just knock off a corner with a hammer, or take a file to it.

What triggers the upper chamber hammer to automatically "fire"? This doesn't seem to work.

It does not 'Fire'! It is like an impact driver used to loosen rusted screws etc. That you tap with a hammer. This is used as a scribe or as an impact punch to make a mark, say in metal, when you drill. Tap it hard when in the correct spot, with hand or small hammer. You can adjust the depth of mark by turning the handle. Lots of good videos on YouTube

Would this be good for removing door hinge pins?

Hi, this tool is not suitable for removing door hinge pins.

Will this tool punch a hole in 24 guage tin?

It doesn't have much power on its own, but maybe if you use a HAMMER with it. Of course that will break the plastic end bit, so try a plain punch or nail + hammer. This will dent wood and mild metal, not make a hole.

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MulWark 5" Spring-Loaded Automatic Steel Center Hole Punch Marker Scriber for Wood, Metal, Plastic, Car Window Puncher Breaker Tool-with Palm Cushion Cap, Adjustable Impact-A Replacement Tip Included

MulWark 5" Spring-Loaded Automatic Steel Center Hole Punch Marker Scriber for Wood, Metal, Plastic, Car Window Puncher Breaker Tool-with Palm Cushion Cap, Adjustable Impact-A Replacement Tip Included

Product ID: 42793263

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Details

Material
Chromium Steel
Color
Orange
Brand
MULWARK
Operation Mode
Manual
pin hole diameter
5 Inches

🎯Adjustable impact for precise, repeatable dimples

⚙️Hardened Cr-V steel for ultimate durability

🖐️Ergonomic knurled grip with palm cushion cap

Description

🔨 Punch Perfect Every Time – Your Go-To Marking Powerhouse

BUILT TO LAST - Premium Cr-V steel resists rust and high impact wear
LONG TERM VALUE - Replaceable tip with free spare ensures extended tool life
CUSTOMIZABLE IMPACT - Adjust striking force for consistent, uniform dimples every time
ONE HANDED PRECISION - Hammerless, effortless marking on wood, metal, glass & more
COMFORT MEETS CONTROL - Deep knurled grip and cushioned cap reduce hand fatigue

The MulWark 5" Spring-Loaded Automatic Steel Center Hole Punch combines premium Cr-V steel durability with an adjustable impact mechanism and ergonomic design, enabling precise, repeatable dimples on multiple surfaces without hammering. Its replaceable tip and cushioned palm cap make it a reliable, comfortable tool for professionals seeking efficiency and longevity.

Specifications

Manufacturer	Mulwark
UPC	736649537453
Part Number	MLK-53745
Item Weight	2.39 ounces
Product Dimensions	7.48 x 2.56 x 0.79 inches
Country of Origin	China
Item model number	MLK-53745
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Batteries Included?	No
Batteries Required?	No

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