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Micro-Torq 4mm Hex Bit Driver

$139.95 Regular price
Unit price

$3 Shipping on all Domestic orders

FREE International Shipping on Orders Over $150

 The Micro-Torq titanium 4mm hex bit driver is the perfect tool for your routine chores, special DIY projects, and maintenance tasks. Based on the readily available 4mm micro bit standard, the Micro-Torq is a pleasure to use whether it's once a day or one hundred times a day. It's everything you would want in a hex bit driver and more. Key features include:

  • Magnetic bit retention
  • Precision ball bearing mounted end cap
  • Dual knurled regions for the perfect grip during palm or fingertip use
  • Full titanium construction for light weight and ultimate durability
  • Torq Bar for increased rotational torque

Using the 4mm hex bit format, the Micro-Torq can leverage a smaller, thinner and lighter overall package than other 1/4" hex bit drivers, yet still provide just as much muscle and durability. The included Torq Bar acts like a T-wrench handle, providing a firm grip to easily release those rusted, stubborn screws without reaching for a larger tool. Simply insert it through the matching holes in the body and the bearing mount, and you have instant increased torque capability.

Our unique dual knurl pattern prevents finger slippage in both rotational and linear axes, with a smooth transition between the two sets to ensure a precise and comfortable grip during use. Positioned for the utmost comfort, you can rest the end cap in the palm of your hand or steadied with your index fingertip and always have a firm grip within reach.

Utilizing an ABEC-7 precision ball bearing in the end cap, you can freely rotate the barrel of the driver without the need to overcome the force against of your palm or fingertip. Smooth, flowing motion with extremely low friction. For virtually zero friction and that "fidget spin" capability, you can upgrade to our user-replaceable ceramic ball bearing. We have achieved end cap spin times of over 3 minutes with this bearing!

Ensuring a lifetime of dependable service, the bearing cap is user-removable in case you ever need to replace the bearing, upgrade to our ceramic bearing, or even want to replace the cap with a different color or style. Inserting the Torq bar through the matching holes in the body will lock the bearing in position, allowing you to simply unscrew the cap from the bearing mount. Nothing complicated, just common sense design.

Available in 3 anodized cap colors, choose your favorite and throw away all those other inferior drivers in your tool box!

What you get:

  • [1] Micro-Torq 4mm Hex Bit Driver
  • [1] Torq bar

Please note: This product does not come with hex bits. 4mm micro bits are available from many online sources including Wiha Tools.

Ceramic bearing upgrade is available here 

Body Dimensions:

  • Length (without hex bit: 4.13" [105.0 mm] 
  • Length (with hex bit): Approximately 4.98" [126.5 mm]
  • End cap diameter: 0.98" [25.0 mm]
  • Body diameter at large knurling: 0.47" [12.0 mm]
  • Body diameter at small knurling: 0.37" [9.5 mm] 


  • Body, bearing mount and end cap: 6Al-4V titanium (Grade 5)
  • Bearing: Chrome Steel
  • Bearing Shoulder Screw: 316 Stainless Steel

Weight (without hex bit): 1.66 oz [47 grams]

Finish: Driver body is bead blasted to a uniform matte finish. end cap is anodized in your choice of 3 colors: Aqua, Green, and Blue Raspberry

Hex Bits (not included):

  • Bit engagement depth: Approximately 0.236" [6.0 mm]
  • Magnetic retention: Neodymium magnet
  • Hex bit size: Industry standard 4mm

The Micro-Torq driver components are run through a series of strict finishing processes to ensure repeatable results on every production run. This not only ensures consistent quality, but it also provides you with a superior product that you will be proud to own:

  • The driver bodies and bearing housings are masked and bead blasted by hand to ensure a uniform finish
  • The bearing housings are laser engraved with a subtle TEC logo, verifying that you receive a genuine TEC product
  • The end caps are tumbled through a 4-stage process over the course of 8 days, resulting in a highly polished surface finish. This will provide a brilliant color intensity after anodizing
  • The caps are then thoroughly inspected and run through an ultrasonic cleaning bath to prepare them for anodizing
  • The titanium anodizing performed on the caps is done using a tightly controlled electrical voltage process to ensure repeatable color from batch to batch

The above steps, in addition to all of our intermediate inspection and quality checks, guarantee that you will receive the best possible product TEC Accessories can produce.


    TEC Accessories offers a 30 day no-questions-asked return policy on all of our products. If you are not satisfied with your purchase, for any reason, contact us to arrange a return/refund. In addition, all products carry a 90 day warranty against defects in materials or workmanship. Please contact us if you have any problem with your purchase that requires attention, and we will promptly make any necessary corrections.

    Shipping Times

    PLEASE NOTE: Due to the current logistics delays, shipping times may take longer than expected. This is especially true for International shipments, where delivery times can take weeks longer than usual. This is beyond our control, and we ask that you please be patient with expected deliveries until shipping companies get back to a more "normal" schedule.

    We make every effort to process orders within one working day, however there may be slight delays depending upon the number of orders we receive, holiday periods and available staffing resources. Typically we will process all orders within no more than 2 working days.

    Shipping times (from the time the package is dropped off at the carrier) will vary depending upon the carrier, method of shipment and destination. For example USPS Domestic First Class Mail should take between 2-3 days, but we have seen instances of 5-7 days. Domestic Priority Mail should take 1-2 days, but can take anywhere from 1-4 days. Domestic Express Mail should take one day, but that is only if your processed order is delivered to the post office before the cutoff time (typically 12:00 noon). Also keep in mind that weather and travel distance can have an effect on delivery times.

    International shipments have even more variables that must be considered. A package sent by USPS First Class International can take anywhere from 1-3 weeks, sometimes longer depending upon the country. International shipments have the potential of being delayed by Customs, as well as having additional taxes or fees levied on a package. These are out of our control, and we advise that you become familiar with your specific country's shipping regulations to understand the impact to your shipment.

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    Customer Reviews

    Based on 24 reviews

    USA made. Well designed & crafted Titanium micro driver. Cool Blue Raspberry Anodized color. Strong magnet to hold bits in place. Comes with a extra pin to insert through the handle for extra leverage. Bearing is smooth but I just ordered the upgraded ceramic bearing that boasts a 3 min spin time. I bought this during the July 4th sale that knocked the price down around $85.

    Pierced Armor
    The ultimate 4mm bit driver

    Great little accessory to have in your bag of tools. Made of the upmost quality and it's a great looking tool, that functions as well as it looks. The little included bar gives you that additional torque when you're dealing with stubborn hardware. Very ergonomic for it's size and it's easy to grasp for a micro tool.

    In fact, I just purchased (2) more during the recent sale, as I plan to put two nice minimalist type tool kits that I plan on giving my son and daughter each one this Summer.

    Just another typical Tech Accessories product that oozes innovation and quality.

    Thanks Tom and team.

    Jim R Cook
    Very smooth, excellent feel.

    This is a great tool for smaller work.

    Dave L.
    Top-notch Tool

    The Micro Torq Hex Bit Driver is awesome.
    It's a high quality tool that looks cool and works great. I've wanted one for so long, and finally took advantage of the sale with the free ceramic bearing upgrade. The regular bearing is already very smooth, and the ceramic bearing is out of this world. I'm trying to match the three-minute spin that the TEC crew gets from it - lol. This thing is both rock-solid practical and super fun.

    Stephen Davis
    Well made and useful

    The driver was a bit larger than I had pictured it, which was good as that makes it fit the hand quite well. The bit holder is well made to fit the 4mm bet very well and the magnet holds the bit firmly but still allows easy removal. Although great as it comes, adding the ceramic bearing allows the top to turn (or spin) with ease. It’s become my favorite 4mm bit holder!