What is the sensitivity? (+/- X micrometers)

This goes to 0.5 MM, which is 5 micrometers.

Can this replace a metal blade in a combination square? i'm a novice diy woodworker

No. The combination squares I'm familiar with typically have a channel that runs the length of the rule which is provided to allow it to be locked into place when adjusted as desired. This rule does not have that channel.

Is this really sand blasted finish? I am looking for a ruler wirh zero glare to be able to see it easily

Here is the Shinwa scale on top of another brand I bought at the same time. The Shinwa definitely has a non glare finish. I did move them around so you can compare for yourself. Additionally, the Shinwa model has stayed flat and the edges while being sharp are smoother to the touch - the other rulers edge seems almost sharp enough to cut if you ran it across your hand. I don’t think you will be dissapppointed in the Shinwa,

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Shinwa 12" 300 mm English Metric Rigid (1.250 wide x .040 thick) Zero Glare Satin Chrome Stainless Steel E/M Machinist Engineer Ruler/Rule with Graduations in 1/64, 1/32, mm and .5mm Model H-3412C

Product ID: 6458209

Details

Brand
Shinwa
Color
black
Graduation Range
1/64 Inches
Material
Stainless
Style
Industrial

📏12" / 300mm precision length

🔍Photo-etched graduations for ultra-clear readability

🛡️Hardened stainless steel with zero glare satin chrome finish

41850CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📏 Measure Like a Pro, Shine Like a Boss

ERGONOMIC ROBUST DESIGN - Generous 1.25" width and 0.040" thickness provide stability and comfort for extended use without flex.
PRECISION AT YOUR FINGERTIPS - Dual-scale graduations in 1/64", 1/32", mm, and 0.5mm for flawless measurements every time.
READABILITY THAT WORKS OVERTIME - Zero glare surface and black-filled etched markings ensure you never miss a detail, even in bright or low light.
BUILT TO LAST DESIGNED TO IMPRESS - Crafted from hardened, tempered stainless steel with a corrosion-resistant satin chrome finish that stays sharp and sleek.
ENGINEERED FOR PROFESSIONAL ACCURACY - Conforms to the rigorous Japanese Industrial Standard (JIS) B 7516 Grade 1 for trusted precision.

The Shinwa 12" (300mm) English Metric Rigid Rule is a premium stainless steel machinist ruler featuring hardened, tempered construction and a zero glare satin chrome finish. It offers precision photo-etched graduations in 1/64", 1/32", mm, and 0.5mm, ensuring exceptional readability and accuracy. Built to meet Japanese Industrial Standard (JIS) B 7516 Grade 1, this ruler combines durability, corrosion resistance, and professional-grade precision in a sleek, ergonomic design favored by engineers and machinists worldwide.

Specifications

ASIN	B00LYAJRAO
Best Sellers Rank	#195,023 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #331 in Construction Rulers
Brand Name	Shinwa
Color	black
Customer Reviews	4.7 4.7 out of 5 stars (460)
Graduation Range	1/64 Inches
Item Dimensions L x W	12"L x 1.25"W
Manufacturer	Shinwa Measuring Tools Corporation
Material Type	Stainless Steel
Part Number	H-3412C
Style Name	Industrial
UPC	798167967013 616909150953

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