Precision Torque Limiters (PTL) Kits

Packaging solutions for PTL kits

Packaging option code (K1,K2,K3) is always shown at the end of PTL kit code

		Packaging code: K1, K2 This packaging is for a single or double PTL kits. Unbreakable PP case incorporates hinged lid and integrated latch. This case dimensions are 6.3"x4.3"x1.3".
		Packaging code: K3 This packaging includes PTL kit, either K1 or K2, and a poly bag with Screwdriver Bits Kit (SBK).

Relatively low torque PTLs, such as the ones with 4 and 8 inch-lbs. presets, do not require compact 3/8" square drive ratchet driver as shown above. Just use PTL body as a screwdriver handle to apply the torque. We do include knurled drive adapter with these low torque PTLs as a potential assist if PTL body surface may become slippery.

We do not ship to destinations outside the U.S. zip codes areas. If you reside in any country other than the U.S., do not use "Add to Cart" buttons below. See FAQ, #15.

Flat rate shipping charge is $12.00 for a single item, $15.00 for two items and $18.00 for three items sent in the same package to the same address. If the total number of items you want to purchase is more than three (3), contact us by e-mail for a quote.

"Off-the-shelf" single PTL kits

Suggested application:

FNH-SCAR 16/17
barrel clamp screws

62
inch-lbs.

  Both kits include:

  62 inch-lbs. precision torque limiter

  Differences between kits:

  Accessories for PTL0062K1:
  1. Compact 3/8" square drive ratchet
  2. T25 torx 1" long bit

  Accessories for PTL0062K3:
  1. Accessories for PTL0062K1 kit
  2. Separate Screwdriver Bits Kit (SBK)

Kit code: PTL0062K1
In stock: Yes
Price: $40.00

Kit code: PTL0062K3
In stock: Yes
Price: $75.00

Suggested application:

Various scope mount
crossbolts

65
inch-lbs.

  Both kits include:

  65 inch-lbs. precision torque limiter

  Differences between kits:

  Accessories for PTL0065K1:
  1. Compact 3/8" square drive ratchet
  2. 1/2" hex socket with 1/4" sq. drive
  3. 1/4" hex to 1/4" sq. drive adapter

  Accessories for PTL0065K3:
  1. All accessories for PTL0065K1 kit
  2. Separate Screwdriver Bits Kit (SBK)

Kit code: PTL0065K1
In stock: Yes
Price: $40.00

Kit code: PTL0065K3
In stock: Yes
Price: $75.00

"Off-the-shelf" double PTL kit

Suggested application:

NightForce and Vortex
turrets set screws

4
inch-lbs.

8
inch-lbs.

These PTLs and bit extension
are included into BCK-MX kit.
Watch this BCK-MX instruction
video, starting from 5.05 into
the video, to learn the proper
use of these kit components.

  Both kits includes:

  4 inch-lbs. precision torque limiter
  8 inch-lbs. precision torque limiter

  Differences between kits:

  Accessories for PTL004008K2:
1. Knurled drive adapter*
2. 5/64" hex, 2 mm hex 1" long bits
  3. 4" long screwdriver bit extension

  Accessories for PTL004008K3:
  1. Accessories for PTL004008K2 kit
  2. Separate Screwdriver Bits Kit (SBK)

  *These two torque limiters do not
   require 3/8" square drive ratchet.
   Knurled drive adapter is included
   as an assist if PTL body is slippery.

Kit code: PTL004008K2
In stock: Yes
Price: $75.00

Kit code: PTL004008K3
In stock: Yes
Price: $110.00

Additional information about Precision Torque Limiters

Borka Tools PTL (Precision Torque Limiter) is based on the proven design of compact industrial torque limiting device, which is calibrated in accordance with ISO-6789 procedure. PTL dimensions are 0.87"(O.D.) x 3" (Length) and weight is 3.5 ounces.

PTL design incorporates an adjustment screw, which is utilized for precise calibration to the desired torque limiting value. This design feature gives Borka PTL an important advantage in accuracy in comparison to other torque limiters in the same price range. PTL is preset by the manufacturer to specific torque value, and is not user adjustable.

By design, PTL limits torque both in CW and CCW rotation. It is precisely calibrated in CW rotation only. Limiting the torque in CCW rotation serves as its purpose to avoid damage to torque limiting mechanism, if PTL tool is also used to loosen the fasteners.

Warning: Never use PTL with any motorized drivers. This will result in an excessive wear of torque limiting mechanism, degradation of accuracy and may cause damage.

Depending upon availability in stock, each PTL has either a laser etched I.D. mark on its body and a separate certificate of calibration, or PTL may have an I.D./Calibration label attached directly to the PTL body without any separate certificate of calibration.

Our PTL torque tool consists of torque limiter, compact 4.37" long ratchet drive handle with 3/8" square (M) and 1/4" hex (F) socket drive ends and 1/4" hex shank screwdriver bit. PTL has 3/8" square (F) drive input end and 1/4" hex (F) output end. Our ratchet handle is rated for up
to 250 inch-lbs. and can be very quickly connected to and disconnected from the torque limiter. It can be also utilized as a
general purpose ratchet driver by itself.

Click picture on the left to play video

1. Video category: Instructions

2. Video provider: X-Ring Channel on Youtube

3. Video duration: 5 minutes

4. Video description: How to set up and use PTL