Some torque drivers will be damaged if used for unfastening bolts. Is this tool ok for that??

You should never use a torque drive to unfasten, regardless of what is on the box. Torque drivers and wrenches have to be calibrated (and should be regularly recalibrated). Using them to unfasten causes them to become inaccurate faster, if not damaging the tool permanently.

Does anyone know the accuracy of this? It's odd that Park doesn't listed it on its website...makes me think it's up near +/- 6% or something.

I just (December 2019) purchased two of these, and tested both of them using a park tool tw-5.2 AND a Quinn digital torque adapter. Both Park ATD-1.2 torque drivers delivered higher torque than the indicated value. 4NM indicated on the ATD-1.2 was actually just over 4.6NM tested. The errors got smaller as the torque values went up...at 6NM indicated, the actual torque delivered was about 6.7 NM. In other words, at the low end the ATD-1.2 delivers about 15% more torque than indicated, and at the high end, it delivers about 12% more torque than indicated. This was consistent...both of my ATD-1.2 drivers gave me the same results, and the results were the same regardless of which device I used to measure them!

What is the difference between the atd 1 and the atd 1.2?

The ATD-1 is the old version the ATD-1.2 is the new version. The new one is a little easier to adjust the torque setting, but works basically the same.

Park Tool Atd 1 2 Adjustable Torque Driver Ââ Â

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Description

⚙️ Master every fastener with precision torque power!

BUILT TO LAST - All-metal internal construction ensures durability for years of professional use.
TRUSTED BY PROS - Park Tool quality with 4.7-star rating from over 1,500 users—join the elite.
DAMAGE PREVENTION - Limits overtightening to safeguard your lightweight fasteners and components.
ERGONOMIC COMPACT - 7-inch length and lightweight 0.3 kg design for comfortable, fatigue-free handling.
PRECISION TORQUE CONTROL - Adjust from 4 to 6 Nm to protect delicate components effortlessly.

The Park Tool ATD-1.2 Adjustable Torque Driver offers precise torque settings from 4 to 6 Newton Meters, featuring a robust all-metal internal build for long-lasting durability. Designed for professionals and enthusiasts alike, this 7-inch, lightweight tool prevents overtightening damage, ensuring your components stay safe and secure. Highly rated by over 1,500 users, it’s the go-to torque driver for reliable, accurate fastening.

Specifications

ASIN	B076CX3WDT
Brand	Park Tool
Brand Name	Park Tool
Colour	Blue
Country of Publication	USA
Customer Reviews	4.7 out of 5 stars 1,551 Reviews
Finish Types	Polished
Global Trade Identification Number	00763477000057, 07634770000576
Head Style	Fixed Square
Item Length	7 Inches
Item Package Quantity	1
Item Torque	6 Newton Meters
Item Weight	0.3 Kilograms
Manufacturer	Park Tool
Material	Aluminium
Material Type	Aluminium
Model Number	QKATD12
Operation Mode	Mechanical
UPC	763477000057
Unit Count	1.0 Count

Reviews

M**N

excellent product

1.04.2026

V**R

Solid, Functional

16.04.2024

M**S

Poor Fit

11.02.2024

T**I

Muy satisfecho

Herramienta un poco pesada pero muy útil. La selección de los pares de apriete va un poco dura, pero funciona muy bien. También resulta útil tener varias puntas disponibles en el tapón que incorpora la herramienta.

9.12.2024

C**C

Excellent torque wrench

12.11.2025

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AED 802

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Sold byAmazon UAEDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Park Tool ATD-1.2 Adjustable Torque Driver ââ‚¬â€œ 4-6Nm

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