Borka ATD-EFK2: Enhanced Field Kit 2.0

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New Borka Tools ATD-EFK (Expanded Field Kit) represents further evolution of MG19 kit, and is now available for purchase.  Kit includes new Adjustable Torque Driver (ATD), which has tightening torque adjustment range from 10 inch-lbs. to 85 inch-lbs. in 1 inch-lb. increments.  


Kit includes:

  1.  ATD-1085-CSA-MG adjustable torque driver
  2.  Autolock bit holder (primary driver spindle)
  3.  1/4" hex (M) to 1/4" square (M) drive adapter
  4.  1/4" hex (F) to 1/4" square (F) drive adapter
  5.  3/8" square (M) to 1/4" square (F) drive adapter
  6.  1/2" hex 6 point socket with 1/4" square (F) drive
  7.  4" extension, 1/4" square (M) to 1/4" square (F) drive
  8.  Compact ratchet drive handle with 1/4" hex (F) socket
  9.  Total of 29, S2 alloy steel, hard chrome plated, 1" long bits:
        Hex, Inch: 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16" 
        Hex, Metric: 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm
        Torx: T-10, T-15, T-20, T-25, T-27, T-30 (not Torx-Plus)
        Slotted, Inch: 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16"
        Phillips: #1, #2
        Pozi: #1, #2

 10. Barrel wrench (AI AT/AX MC)

 11. 1000D cordura nylon carry pouch, custom made by TAB GEAR 



ATD limiting torque accuracy variation is +/- 4%, which is better than typically expected +/- 6% for the quality hand operated torque tools. In order to achieve this high level of torque limiting accuracy, ATD user is fully expected to follow instructions, provided by Borka Tools. We highly recommend to watch ATD related videos from 8541 Tactical and Learning Firearms,  available from Youtube. These two videos provide considerably more information than it is possible to include into the printed user guide, and show how to set up and use torque driver and other kit components in great detail. At this time, these two videos are the only ones, which are both recommended and approved by Borka Tools as official ATD video guides.


ATD operation is based on use of any one of the two pre-set "break-over" forces. These two forces, which correspond to low and high torque adjustment ranges, are user selectable by simply flipping the torque driver over, and applied at user adjustable distance between the center of the driver handle spherical notch (tightening force application spot) and the driver spindle axis of rotation. As soon as tightening force over pre-set distance exceeds selected torque value, driver handle disengages the driver arm lock and then pivots out of the way, effectively canceling further torque application and preventing over-tightening of the fastener.


Compact and light weight (less than 6 ounces), rugged, highly consistent and accurate torque driver is of all metal construction and differs from traditional "slip clutch" and "cam-over" type torque limiting screwdrivers and wrenches by its simple and reliable design. In addition, all torque driver components are made from stainless steel, hard anodized aluminum, and chrome or zinc plated alloy steel. This choice of materials ensures sufficent degree of corrosion protection when torque driver is used outdoors.


There are no design, quality or external appearance differences between torque drivers included in various kits. The differences are in actual configuration of the kits, which is determined by variety of included accessories and kit packaging options.


ATD-EFK (Expanded Field Kit) is most suitable as a standalone compact torque tool kit, which also includes a wide, but highly optimized variety of screwdriver bits. ATD-EFK outside dimensions are 6.6"x3.8"x1.1" and its intended purpose is for use in the field.