At the center of this key, it looks like a hex key? does it fit a standard hex bit?

Yes it’s , but it doesn’t fit all kinds of hex keys

What's this used for?

It’s used To open the locked elevator doors by firefighters

Anyone know the dimensions of the triangle key?

Sorry I don’t know but I think it’s a standard dimensions for all the elevators …

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🔑 Unlock Every Angle with One Sleek Tool!

GLOBAL COMPATIBILITY - No geographic limits—works wherever the size and shape match.
COMPACT LIGHTWEIGHT - 70mm length and 61g weight for easy portability in your toolkit.
ALL IN ONE UNIVERSAL KEY - Unlocks multiple valve and cabinet types with 4 distinct key shapes.
PREMIUM STAINLESS STEEL BUILD - Engineered for long-lasting strength and corrosion resistance.
POLISHED FINISH FOR PROFESSIONAL USE - Sleek silver look that fits seamlessly in any work environment.

The Atoplee 4-in-1 Universal Cross Triangle Key is a compact, stainless steel multi-tool designed for professionals managing train, electrical, elevator, and plumbing cabinets. Featuring four key shapes in one durable, polished alloy tool, it offers global compatibility and easy portability, making it an essential addition to any manager’s toolkit.

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Manufacturer	ATOPLEE
Part number	OP-3872
Item Weight	61 g
Product Dimensions	7 x 7 x 1 cm; 61 g
Item model number	OP-3872
Size	1pcs
Color	Silver
Style	Universal
Finish	Polished
Material	Stainless Steel
Power source type	ac_dc
Item Package Quantity	1
Number Of Pieces	1
Head Style	Fixed Square
Included components	NO
Batteries Included?	No
Batteries Required?	No
Battery Cell Type	Zinc

Atoplee 1pcs 4 in 1 Alloy Triangle/Square Universal Cross Triangle KEY for Train Electrical Elevator Cabinet Valve

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