---
product_id: 10343343
title: "CDI Micro Adjustable Torque Screwdriver, 1/4 Inch Hex Drive, Range 40-200 cNm (151NSM)"
brand: "cdi torque products"
price: "$U17570"
currency: UYU
in_stock: true
reviews_count: 8
category: "Cdi Torque Products"
url: https://www.desertcart.uy/products/10343343-cdi-micro-adjustable-torque-screwdriver-1-4-inch-hex-drive
store_origin: UY
region: Uruguay
---

# Automatic counterclockwise lock for easy fastener removal Strong earth magnet for secure bit hold Precise torque range 3-15 in.lbs (40-200 cNm) CDI Micro Adjustable Torque Screwdriver, 1/4 Inch Hex Drive, Range 40-200 cNm (151NSM)

**Brand:** cdi torque products
**Price:** $U17570
**Availability:** ✅ In Stock

## Summary

> 🛠️ Torque Like a Pro — Never Over or Under Tighten Again!

## Quick Answers

- **What is this?** CDI Micro Adjustable Torque Screwdriver, 1/4 Inch Hex Drive, Range 40-200 cNm (151NSM) by cdi torque products
- **How much does it cost?** $U17570 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/10343343-cdi-micro-adjustable-torque-screwdriver-1-4-inch-hex-drive)

## Best For

- cdi torque products enthusiasts

## Why This Product

- Trusted cdi torque products brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Magnetic Bit Holder:** Universal 1/4-inch hex drive with a powerful earth magnet keeps bits firmly in place, reducing slips and improving efficiency.
- • **Durability Meets Design:** Built with a cam-over mechanism to prevent over-tightening, protecting your components and extending tool life.
- • **Effortless Fastener Removal:** Automatic lock in the counterclockwise direction makes unscrewing quick and hassle-free, saving you time on every job.
- • **Trusted Quality & Longevity:** Backed by CDI’s ISO 9001 certification and a limited lifetime warranty, this tool is engineered to last a lifetime of precision work.
- • **Precision at Your Fingertips:** Micro-adjustable torque settings with easy-to-read window scale ensure exact control for delicate electronics and instrument assembly.

## Overview

The CDI Micro Adjustable Torque Screwdriver (151NSM) is a high-precision tool designed for electronics and instrument assembly, featuring a 3-15 in.lbs torque range, a strong magnetic 1/4-inch hex bit holder, and an automatic counterclockwise lock for easy fastener removal. Its cam-over design prevents over-tightening, while the unique adjusting knob and clear window scale allow for quick, accurate torque setting changes. Trusted by professionals and backed by CDI’s ISO 9001 certification, this durable screwdriver offers reliable, repeatable torque control for delicate and precise applications.

## Description

Product Description CDI Torque Micro-Adjustable Torque Screwdrivers offer versatility for applications that require more than one torque value. These torque screwdrivers are particularly suited for the electronics industry and for instrument assembly work. A simple, cam-over design prevents over-tightening and possible damage to components. Torque settings are easily and accurately changed with a unique adjusting knob and easy-to-read window scale. Adjusting the screwdriver is simple. Just pull out the adjusting knob to unlock, turn to the desired setting, then push the knob in until it clicks! Positive locking knob makes accidental setting changes impossible. Automatic lock in counterclockwise direction makes fastener removal a snap. CDI was founded in 1968 and over the years has developed into a world class torque products manufacturing company. The company earned its ISO 9001 International Quality System Certification in 1998, demonstrating a commitment to provide our customers with the highest quality torque measurement and torque limiting devices in the world. CDI has long been a major innovator and leader in electronic torque measurement and torque calibration equipment. From the Manufacturer This CDI Torque micro adjustable torque screwdriver offer versatility for applications that require more than one torque value. This torque screwdriver is particularly suited for the electronics industry and for instrument assembly work. A simple, cam over design prevents over tightening and possible damage to components. Torque settings are easily and accurately changed with a unique adjusting knob and easy to read window scale. Adjusting the screwdriver is simple, just pull out the adjusting knob to unlock, turn to the desired setting, then push the knob in until it clicks. The positive locking knob makes accidental setting changes impossible. The automatic lock in counterclockwise direction makes fastener removal a snap. It has a universal 1/4-Inch hex bit holder with a strong earth magnet and has a torque range of 3 to 15-Inch pounds.

Review: GREAT Torque Wrench/Screwdriver At A GREAT Price - This CDI micro torque screwdriver is a product distributed through (besides desertcart) Snap-On. This is one of those tools that I don't use that often, but when its needed it is Really needed. Before I bought this item a little over a year ago I did quite a bit of on-line research and discovered that this CDI tool was literally the "only game in town" in terms of accuracy and reliability. The only other contender that even came close (but not very close) was a torque screwdriver sold by Brownells. Since I do not have a calibration lab I went by the accounts of multiple on line sources, and would suggest that you might do the same...things might have changed in the past year. desertcart had the best IN STOCK price I was able to find a year ago. I do my own gunsmithing and use this tool whenever a precise amount of torque is required per a manufacturers specifications. The torque settings are easy to see and adjust within one inch pound increments. The tool accepts regular screwdriver type bits, and therefore will accept just about anything used to tighten small machine parts. So whether you are tightening a screw or a nut (or something in between), and you have the bit to fit your application, this will do the job for you. The build quality on the tool is excellent. It has the heft of a solid little machine and the handle affords a positive grip that lets you apply the downward pressure necessary to keep your bit solidly on the screw and thus avoid any slippage that could mar your workpiece. As far as I can tell (without a calibration lab) this tool gives the proper, repeatable result. I have not stripped a screw or experienced a malfunction of any sort connected with the use of this item. I am very picky when it comes to tools and machines...I earned a living most of my life as a clockmaker specializing in the restoration of antique clocks. These days it is difficult/impossible to acquire high quality tools at a reasonable price. This CDI torque screwdriver is a rare exception in a world of shoddy tools that simply don't measure up to any standard of quality. I believe the reviewer that downgraded this $100+ tool should look toward the Much More Costly torque devices that are intended for 24/7 usage. Under "normal" use I would expect this tool to last the craftsman a lifetime. Kudos to desertcart for making this reliable, high quality tool available to the workman at a good price.
Review: Excellent Micro Adjustable Torque Screwdriver - When considering this tool to purchase - it should be noted that when you are using a tool 24 hours on all shifts (sounds like 24x7) - you also are probably using it more than just once each hour. Once each hour would result in a 5,000 use cycle occurring every 208 days. However, in a busy industrial environment - using this tool just twice each hour - results in 5000 cycles every 104 days. Essentially - every 90 days. You also have the fact that using any torque wrench in the upper or lower ends - decreases the life of said wrench. All of this information is readily available from CDI. The following are quotes from them as to the care of their tools and torque wrenches in general: "To determine which torque wrench capacity is best suited for an application, many factors must be considered. However, as a recommendation, use a torque wrench in the middle 50% of the overall capacity of the tool. This will result in longer tool life, ease of use for the operator and increased accuracy from "clicker" type torque wrenches Torque wrenches should be "exercised" a minimum of three times at 100% of full scale before use Torque wrenches will last longer if reasonable care is taken. Always unwind handle to the lowest setting after each use. Do not attempt to lubricate the internal torque mechanism. Clean torque wrench by wiping, do not immerse. The wrench should be sent to a qualified calibration lab once every year or every 5000 cycles for re-calibration" The instructions for this specific micro adjustable torque screwdriver (401sm) - state to have it calibrated and gone through every 5,000 cycles - or one year - whichever comes first. ALL torque wrenches have useful life cycles. CDI is at least being honest - and putting in print - the life cycle and service requirements. If you use this tool only 3 times each hour - at various settings - you should have it serviced every 69 days minimum. This is just part of the cost of doing business and quality work. I have owned this tool for quite a number of years (just purchasing another one); and find it extremely adequate for small screws, and misc. fasteners without a lot of mass - which require a torque value; etc. With a very long life span. Easy to grip, very visible (bright blue), and easy to use. An excellent tool with excellent cditorque com support.

## Features

- Universal 1/4-Inch hex bit holder with strong earth magnet, 3 to 15 inches pounds
- I thought I was going to need this tool, but I do not, it is being returned in unopened new condition
- Offer versatility for applications that require more than one torque value
- Automatic lock in Counterclockwise direction makes fastener removal a snap
- Torque settings are easily and accurately changed with a unique adjusting knob and easy to read window scale

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | CDI TORQUE PRODUCTS |
| Color | Blue |
| Head Style | Hex |
| Material | Magnet |
| Number of Items | 1 |
| Recommended Uses For Product | Electronics Item, Furniture Assembly |

## Product Details

- **Brand:** CDI TORQUE PRODUCTS
- **Color:** Blue
- **Head Style:** Hex
- **Material:** Magnet
- **Number of Items:** 1

## Images

![CDI Micro Adjustable Torque Screwdriver, 1/4 Inch Hex Drive, Range 40-200 cNm (151NSM) - Image 1](https://m.media-amazon.com/images/I/919Dl+mHtXL.jpg)
![CDI Micro Adjustable Torque Screwdriver, 1/4 Inch Hex Drive, Range 40-200 cNm (151NSM) - Image 2](https://m.media-amazon.com/images/I/91POqfkU-9L.jpg)
![CDI Micro Adjustable Torque Screwdriver, 1/4 Inch Hex Drive, Range 40-200 cNm (151NSM) - Image 3](https://m.media-amazon.com/images/I/61NuPk3rtuL.jpg)
![CDI Micro Adjustable Torque Screwdriver, 1/4 Inch Hex Drive, Range 40-200 cNm (151NSM) - Image 4](https://m.media-amazon.com/images/I/516ReXoz7HL.jpg)
![CDI Micro Adjustable Torque Screwdriver, 1/4 Inch Hex Drive, Range 40-200 cNm (151NSM) - Image 5](https://m.media-amazon.com/images/I/61ZPFn76ulL.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Questions & Answers

**Q: Where is this item made?**
A: This product is made in the USA, and is so marked. I have found this item to be of the highest quality after using it for over a year or so. A great American made product, but it was not made for production line use....50 or 100 times a day I'm sure would destroy it in a few months....But for my use in small arms work on an as needed basis it provides consistent and repeatable readings. I used to restore antique clocks and I have found this to be one of the best tools I have ever purchased...and that is saying a lot.best regardaLarry

**Q: can it be calibrated**
A: The CDI 401SM comes with Certificate of Calibration traceable to N.I.S.T.  Depending on your shop's calibration policy, this driver may be recalibrated on a standard duty cycle.  For more information about the #401SM, the catalog page may be found here:http://site.industrialsupplydenver.com/catalogs/cat3/Snap-on%20Industrial%20Brands%20-%20CAT3%2090.pdf

**Q: Is this tool bidirectional? That is, is it a torque wrench when rotated both clockwise and counter-clockwise?**
A: No, this torque wrench only works in one direction

**Q: Does this take standard bits.**
A: Yes, standard 1/4" bits

## Customer Reviews

### ⭐⭐⭐⭐⭐ GREAT Torque Wrench/Screwdriver At A GREAT Price
*by L***O on January 14, 2013*

This CDI micro torque screwdriver is a product distributed through (besides Amazon) Snap-On. This is one of those tools that I don't use that often, but when its needed it is Really needed. Before I bought this item a little over a year ago I did quite a bit of on-line research and discovered that this CDI tool was literally the "only game in town" in terms of accuracy and reliability. The only other contender that even came close (but not very close) was a torque screwdriver sold by Brownells. Since I do not have a calibration lab I went by the accounts of multiple on line sources, and would suggest that you might do the same...things might have changed in the past year. Amazon had the best IN STOCK price I was able to find a year ago. I do my own gunsmithing and use this tool whenever a precise amount of torque is required per a manufacturers specifications. The torque settings are easy to see and adjust within one inch pound increments. The tool accepts regular screwdriver type bits, and therefore will accept just about anything used to tighten small machine parts. So whether you are tightening a screw or a nut (or something in between), and you have the bit to fit your application, this will do the job for you. The build quality on the tool is excellent. It has the heft of a solid little machine and the handle affords a positive grip that lets you apply the downward pressure necessary to keep your bit solidly on the screw and thus avoid any slippage that could mar your workpiece. As far as I can tell (without a calibration lab) this tool gives the proper, repeatable result. I have not stripped a screw or experienced a malfunction of any sort connected with the use of this item. I am very picky when it comes to tools and machines...I earned a living most of my life as a clockmaker specializing in the restoration of antique clocks. These days it is difficult/impossible to acquire high quality tools at a reasonable price. This CDI torque screwdriver is a rare exception in a world of shoddy tools that simply don't measure up to any standard of quality. I believe the reviewer that downgraded this $100+ tool should look toward the Much More Costly torque devices that are intended for 24/7 usage. Under "normal" use I would expect this tool to last the craftsman a lifetime. Kudos to Amazon for making this reliable, high quality tool available to the workman at a good price.

### ⭐⭐⭐⭐⭐ Excellent Micro Adjustable Torque Screwdriver
*by D***. on December 19, 2012*

When considering this tool to purchase - it should be noted that when you are using a tool 24 hours on all shifts (sounds like 24x7) - you also are probably using it more than just once each hour. Once each hour would result in a 5,000 use cycle occurring every 208 days. However, in a busy industrial environment - using this tool just twice each hour - results in 5000 cycles every 104 days. Essentially - every 90 days. You also have the fact that using any torque wrench in the upper or lower ends - decreases the life of said wrench. All of this information is readily available from CDI. The following are quotes from them as to the care of their tools and torque wrenches in general: "To determine which torque wrench capacity is best suited for an application, many factors must be considered. However, as a recommendation, use a torque wrench in the middle 50% of the overall capacity of the tool. This will result in longer tool life, ease of use for the operator and increased accuracy from "clicker" type torque wrenches Torque wrenches should be "exercised" a minimum of three times at 100% of full scale before use Torque wrenches will last longer if reasonable care is taken. Always unwind handle to the lowest setting after each use. Do not attempt to lubricate the internal torque mechanism. Clean torque wrench by wiping, do not immerse. The wrench should be sent to a qualified calibration lab once every year or every 5000 cycles for re-calibration" The instructions for this specific micro adjustable torque screwdriver (401sm) - state to have it calibrated and gone through every 5,000 cycles - or one year - whichever comes first. ALL torque wrenches have useful life cycles. CDI is at least being honest - and putting in print - the life cycle and service requirements. If you use this tool only 3 times each hour - at various settings - you should have it serviced every 69 days minimum. This is just part of the cost of doing business and quality work. I have owned this tool for quite a number of years (just purchasing another one); and find it extremely adequate for small screws, and misc. fasteners without a lot of mass - which require a torque value; etc. With a very long life span. Easy to grip, very visible (bright blue), and easy to use. An excellent tool with excellent cditorque com support.

### ⭐⭐⭐⭐ Torque Driver for Production Use (Updated)
*by S***M on March 2, 2012*

2nd Update: Jan 30, 2013 So far 2 of the 3 units purchased are working well. I had the 2 checked in my calibration lab and neither tool had a problem. I also recently purchased a 4th to replace the one that failed. I brought the review up to 4 stars because I still think this is a good product. My operators all love this tool and now prefer it over their previous driver. Currently the 3 drivers are only being used by one or two operators so they don't have the same use as the first that failed. Update: August 27, 2012 Sadly, I had to decrease my rating from 5 stars to 3. It is still a good tool and my operators love it but if they only last 6 months it isn't worth it. I sent the first unit back to my calibration lab for a 6 month overhaul and the results were disappointing. They were not able to get the tool back into calibration. The low end was a little off, around 1 in lb below the setting. The upper limit was worse, around 48 in lbs when set to 40. I had this particular tool being used 24 hours a day on all my shifts to check for this exact problem. The life span may be a little longer depending on your usage. The highest torque we have is around 36 in lbs. After 3 months of use with the first article, and my calbration labs approval, I purchased two more that are currently being used in production. They have been in use for 2 months with no problems. Once those have gone through my calibration department for their 6 month overhaul, I will update this review. (Original Review March 2012) I purchased this torque driver to test along with others before getting sets for all my operators. So far I have been extremely pleased with the price, performance, and the feedback of my employees. We are using it on multiple torque specs between 10 and 36 in-lbs. My calibration lab was very happy with the tool; both the low and high only had a 2% variation which is very low when compared with our other drivers. My seasoned operators (who usually do not like change) were very pleased with this design and how easy it is to adjust. I am now putting it through the test and having this one used through all our shifts checking longevity. Afterwards I will send it back through calibration and to double check variation and show there are no problems with adjusting torques. If I run into any problems I will update this review.

## Frequently Bought Together

- CDI Micro Adjustable Torque Screwdriver, 1/4 Inch Hex Drive, Range 40-200 cNm (151NSM)
- CDI 1501MRMH Dual Scale Micrometer Adjustable Click Style Torque Wrench with Metal Handle - 1/4-Inch Drive - 20 to 150 in. lbs. Torque Range

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-24*