How do you measure output torque on this if you need to torque something to, say, 200 lbft?

It's a 3 to 1 multiplier, so to get 200 ... set torque wrench to 75 . 75x3 = 225 - a 10% loss you would be with 5 ft lbs

what is the wa!rranty on this? Contacted amazon and never heard back.

I have no idea. No paperwork came with the tool.

Can anyone tell me the thickness of the head? From the face of the 1/2 drive input to the very edge of the 3/4 drive output?

The distance from the face of the 1/2" in put to 3/4" output is 3 3/8"

can I use it to loosen seized nuts at 1000 ft of torque?

It multiplies the torque you apply to it by about 3x. If you can apply 350 lb-ft of torque then you can apply 1100 lb-ft to remove bolts.

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PRO 03715B 1/2" Drive Torque Wrench, 1100 Foot-Pound Heavy Duty Torque Multiplier Wrench, Cr-Mo and Chrome-Vanadium

Product ID: 109822411

Details

Colour
Cr-mo/Cr-va
Brand
Neiko
Material
Chrome Steel
Item length
13.75 Inches
Item weight
2.31 kg

🔩365 ft-lb input drive power

⚙️1100 ft-lb max torque output

🛠️Cr-Mo & Chrome-Vanadium heavy-duty build

¥127067

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up your wrench game with NEIKO PRO – torque that means business!

COMPACT PRECISION HEAD - Slim 2.9-inch head design slips into tight, hard-to-reach spaces without sacrificing power.
UNMATCHED TORQUE POWER - Delivers a staggering 1100 ft-lb output to conquer the toughest rusted or frozen fasteners effortlessly.
SECURE STORAGE INCLUDED - Comes with a rugged blow mold ABS case for organized transport and protection on the go.
ENGINEERED FOR ENDURANCE - Crafted from premium chromium molybdenum and chrome vanadium steel for long-lasting durability under extreme stress.
VERSATILE FIELD READY TOOL - Perfect for automotive, construction, industrial, and plumbing applications demanding reliable heavy-duty torque.

The NEIKO PRO 03715B Torque Multiplier is a professional-grade 1/2" drive wrench delivering up to 1100 foot-pounds of torque. Built with a chromium molybdenum head and chrome vanadium shaft, it offers exceptional durability and performance for heavy-duty applications. Its compact 2.9" head fits tight spaces, making it ideal for automotive, construction, and industrial use. Includes a sturdy blow mold case for easy storage and transport.

Specifications

ASIN	B0017K5ARU
Best Sellers Rank	357,755 in DIY & Tools ( See Top 100 in DIY & Tools ) 509 in Torque Wrenches
Brand	Neiko
Colour	Cr-mo/Cr-va Steel
Country of Origin	Taiwan
Customer Reviews	4.6 out of 5 stars 323 Reviews
End Style	Socket End
Finish	Polished
Global Trade Identification Number	00837013037156
Head Style	Square Drive
Included Components	Torque Wrench
Is Non Sparking	No
Is Racheting	Yes
Item Length	13.75 Inches
Item Package Quantity	1
Item Torque	1100 Foot Pounds
Item Type Name	Torque Wrench
Item Weight	5.1 Pounds
Item length	13.75 Inches
Item package quantity	1
Item weight	5.1 Pounds
Jaw Capacity	0.5 Inches
Manufacturer	Ridgerock Tools Inc.
Material	Chrome Vanadium Steel Alloy Steel
Measurement Standard	SAE
Model Number	03715B
Number of Items	1
Number of Packs	1
Operation Mode	Mechanical
Part Number	03715B
UPC	837013037156
Unit Count	1.0 count
Wrench Length Style	Standard

Reviews

C**A

Neiko Pro torqu wrench

Durable

12.12.2025

T**8

Wrong packaging

No manual, spair O ring is for the 3/4 input to 1’’ output and the red box is big, hard to rotate. I opened the tool and apply grease to the gears inside…

23.05.2024

R**N

Quality torque multiplier

I bought this torque multiplier based on good online reviews, and while I haven't used it yet, it looks and feels every bit as good as I expected. Next time I need to remove/replace tractor wheel nuts for example, I know it's there in the toolkit. I was always wary of using long breaker bars!

27.04.2025

T**S

Works great

Had to get 600 ft lbs out of my 200 ft lbs torque wrench worked really well.

26.09.2024

A**Y

timely delivery

Product does everything that it is designed to do

28.08.2022

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