what is the square body made of, not the ruler, but the body itself - I suspect soft alloy?

The bodies of the tools that slide on the steel ruler are made of aluminum. I am not the manufacturer. I am a consumer who bought one. I like it. It is very durable and accurate.

Which measurements? Image shows metric markings but text states graduation in 1/32 inches.

Mine has no Metric measurement definitions.

What is the maximum thickness of the ruler it works with. Can it adjust to a four foot ruler?

If the four foot ruler has the same notch opening in it, it would work. There is an insert that fits into the notch

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Stainless steel t square ruler Adjustable sliding combination Square Square Ruler & Protractor Level Measure Measuring Set 4-Piece 12" 4R Combination Square

Stainless steel t square ruler Adjustable sliding combination Square Square Ruler & Protractor Level Measure Measuring Set 4-Piece 12" 4R Combination Square

Product ID: 126466445

Details

Brand
Lurui
Color
Black Chrome
Graduation Range
1/32 inches
Material
Stainless
Style
Straight Ruler

📏300mm precision blade

🔬0.08° laser-engraved accuracy

⚙️0-180° adjustable protractor

€ 28.60

Duties & taxes included

In stock

Sold byAmazon IrelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📐 Elevate your craft with precision that professionals trust!

SMOOTH ADJUSTMENTS - Beveled edges and roller knobs provide effortless, exact calibration.
FLAWLESS ANGLE MASTERY - Adjustable 0-180° protractor with ultra-fine 0.08° accuracy ensures perfect measurements every time.
LASER ENGRAVED CLARITY - Each tick mark is laser-etched for unmatched visibility and precision.
VERSATILE MEASURING SET - Includes 4 essential pieces for inside/outside corners and straight measurements—your all-in-one workshop companion.
PRECISION MEETS DURABILITY - Crafted from rustproof stainless steel for long-lasting reliability.

This 4-piece combination measuring set features a 300mm stainless steel ruler with a 0-180° adjustable protractor, delivering 0.08° accuracy via laser-engraved markings. Designed for durability and precision, it’s perfect for woodworking and detailed measurements, combining smooth roller adjustments with rustproof construction for reliable, long-term use.

Specifications

ASIN	B07R2FB1RH
Best Sellers Rank	#166,729 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #184 in Carpentry Squares
Brand	Lurui
Brand Name	Lurui
Color	Black, Chrome
Customer Reviews	4.0 out of 5 stars 747 Reviews
Graduation Range	1/32 inches
Item Dimensions L x W	11.81"L x 11.81"W
Manufacturer	Lu Rui
Material	Stainless Steel
Material Type	Stainless Steel
Model	Lurui
Number of Items	4
Part Number	Lurui
Product Dimensions	11.81"L x 11.81"W
Style	Straight Ruler,Square,T Square
Style Name	Straight Ruler,Square,T Square
UPC	796862872885

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