are the files iso 9001 certified.

No tools are ISO 9001 certified.

Can I have the pdf file in english? Also is this good for crystal/rock hardness?

I can't answer about the pdf but the files are calibrated for Rockwell hardness for metals, not Mohs scale for rock.

is the writing on the tool itself english or japanese?

Our tool is in Japanese. But we can send you a simple English document on how to use this tool in PDF.

Are these files good for measuring the hardness of soft steel such as hot or cold rolled or only good for tool hardened steel?

The files only go down to 40 Rockwell C, so they won’t give you any information on mild steel. They can tell you if a hardenable steel arrives with any prehardening, meaning you have to temper it before machining.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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TTC HTF-6S 6 Piece Hardness Tester File Set

Product ID: 54819691

Details

Brand
TTC
Colour
Black White
Item weight
227 g
Power source
Battery
Style
Classic

🎨Color-coded for quick ID

📏6 precision hardness files

🛡️Non-slip grip for steady control

KD 46.43

Duties & taxes included

In stock

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Description

🛠️ Master material hardness with confidence and style!

COMPACT PORTABLE - Lightweight 227g set fits easily in your toolkit or pocket for on-the-go testing.
INSTANT IDENTIFICATION - Color-coded design lets you quickly select the right file without hesitation.
STEADY SECURE HANDLING - Non-slip grip ensures confident use even in demanding environments.
TRUSTED BRAND RELIABILITY - From Travers Tool Co., a name professionals count on for quality and durability.
PRECISION AT YOUR FINGERTIPS - Six expertly crafted files for accurate hardness testing every time.

The TTC HTF-6S is a compact 6-piece hardness tester file set featuring color-coded, non-slip files designed for precise and reliable hardness testing. Weighing just 227g, this battery-powered classic tool set from Travers Tool Co. offers professionals a portable and easy-to-use solution for quality control and material verification.

Specifications

ASIN	B005701LAG
Best Sellers Rank	43,346 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 58 in Surface & Hardness Testing
Brand	TTC
Colour	Black, White
Compatible Devices	TTC HTF-6S
Customer Reviews	4.5 4.5 out of 5 stars (265)
Item Weight	227 g
Manufacturer	TTC
Manufacturer Part Number	HTF-6S
Measurement Type	Hardness Tester
Model Number	HTF-6S
Number of Items	6
Power Source	Battery Powered
Style Name	Classic
UPC	647829664282

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