do these come with a certificate of Inspection?

They come with a photocopied card stating standard expected size deviations, not what I believe to be actual inspection values. The price point of these pins, one cannot expect an individual inspection report on each pin. The pins have measured accurate as I can measure them and have been at stated sizes. For my home machine shop use they exceed expectations. I am working within .0005 tolerances and they are doing what I need them to do. Nicely packaged and really corrosion proofed for transit. Each pin wrapped in oil paper to protect. Fit and finish is quite awesome for the price. Very happy with my set. Looking to get next size group of pins (.251-.500) from Accusize. I hope this helps.

If i want to buy only 1 set , should i buy plus or minus pin gage set ? which set experience machinists prefer ? why ? thank you so much

According to CCROSS: "A pin gauge set will typically consist of either plus or minus pin gauges, and based on procedure or tolerances may require both versions to determine a go no go outcome. A minus pin gauge set includes pins with a specified tolerance below the target size, allowing the pin to fit within the target dimension. Likewise, a plus pin gauge set includes pins with a specified tolerance above the target dimension, creating a no-go situation for a bore at the target dimension." So, choose the minus or the plus based on your work.

What is the size of the box these pins are in?

Box size 4" x 5", each pin has a cap to hold onto each pin.

Are all new sets coming in the new improved case?

As of writing, we are still in the process of upgrading the cases. So some of them might come with old cases.

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Accusize Industrial Tools 0.251''-0.500'', 250 Pc/Set Steel Plug Pin Gage Set, Minus, Class Zz, M2(-)

Accusize Industrial Tools 0.251''-0.500'', 250 Pc/Set Steel Plug Pin Gage Set, Minus, Class Zz, M2(-)

Product ID: 594900813

Details

Brand
Accusize Tools
Item diameter
0.25 Inches
Material
HRc 60-62
Pin type
Plug
Size
0.251"-0.500"

📏Precision tolerance ±0.0002''

🔴250-piece set, sizes 0.251''-0.500''

⚙️Heat treated 60-62 HRC hardness

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2542 zł

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Description

📏 Elevate your precision game with the ultimate plug pin gage set!

PREMIUM FINISH - Centerless lapped with a 10-micro finish or better for smooth, reliable gauge contact.
COMPACT ORGANIZED - All gauges 2'' long, housed in a sleek red case for easy transport and professional workspace appeal.
COMPLETE SIZE RANGE - 250-piece set covers 0.251'' to 0.500'' sizes, electro-etched for instant size identification.
UNMATCHED PRECISION - Class ZZ accuracy with ultra-tight ±0.0002'' tolerance ensures flawless measurements every time.
DURABILITY THAT LASTS - Heat treated to 60-62 HRC for superior wear resistance in demanding industrial environments.

The Accusize Industrial Tools 250-piece steel plug pin gage set offers Class ZZ precision with a tolerance of ±0.0002'', heat treated to 60-62 HRC for exceptional durability. Each 2'' long gauge is centerless lapped and electro-etched for quick size recognition, covering sizes from 0.251'' to 0.500''. Ideal for professionals demanding accuracy and reliability in industrial measurement tasks.

Specifications

ASIN	B00YQ3QVXM
Brand	Accusize Industrial Tools
Brand Name	Accusize Industrial Tools
Colour	red
Customer Reviews	4.7 out of 5 stars 228 Reviews
Fastener Type	Plug
Finish Types	Glossy
Item Diameter	0.25 Inches
Item Dimensions	8 x 43 x 31 centimetres
Item Weight	9 Kilograms
Item diameter	0.25 Inches
Manufacturer	Accusize Co., Ltd.
Manufacturer Part Number	M2(-)
Material	HRc 60-62 Steel
Material Type	HRc 60-62 Steel
Model Number	M2(-)
Number of Pieces	250
Pin Type	Plug
Pin type	Plug
Screw Head Style	Plug
Size	0.251"-0.500"
Thread Size	0.251''-0.500''
UPC	641799808714

Reviews

A**N

EXCELENTE

20.07.2022

P**E

Good product

They are excellent for measuring small holes

24.01.2026

T**S

worth every cent

nice complete kit, well made.

18.01.2026

J**.

Very accurate pieces.

Very nice case and top quality pieces.

23.10.2025

G**R

Seems to be to spec

Checked random pieces with a calibrated vernier micrometre. All good

21.12.2025

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2542 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Poland.

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