Belknap’s Marking Preset Torque Wrenches are designed and recommended for FINAL TORQUE VERIFICATION only and are not intended to be used for torquing down the fastener. They will leave a positive mark (ink or indentation) for torque verification so that a simple visual inspection is all that is needed to confirm that torque has been applied. THEY WILL NOT MARK ACCIDENTALLY. All marking torque wrenches are custom-made to suit your application. Contact us now to learn more about our Marking Preset Torque Wrenches.
INK MARKING Preset Torque Wrenches
- Accuracy is ± 4%.
- Only marks in CW direction.
- Manually operated.
- Non-coagulating ink, includes two ink cartridges.
- Available ink colors are Red, Blue, Yellow, Green and White.
- Felt tip left uncovered after long periods of time may require minimal priming.
- Approximate ink cartridge cycles is 350-400 and dependent upon the operator/application.
- Ink is also available by the quart.
- Cannot mark any type of screws, including Allen or Torx (but may be able to mark an adjacent area.)
Hex Size A.T.F. (across the flats) and Torque Limitations — TOP Ink Style
• The smallest we can mark is 1/2″ or 12mm.
• Torque Range is 4-135 Ft.Lbs. or 5.4-183 Nm*
Hex Size A.T.F. (across the flats) and Torque Limitations — SIDE Ink Style
• The smallest we can mark is 9/16″ or 14mm.
• Torque Range is 5-135 Ft.Lbs. or 6.8-183 Nm*
*NOTE: Please check your requirements with us. Torque output capacity will be limited by the Socket size or the Opening size of the head.


PUNCH MARKING Preset Torque Wrenches
- Accuracy is ± 4%.
- Only marks in CW direction.
- Requires 90 psi standard, non-lubricated shop air.
- Replaceable striking pins will eventually become a bit dull and will need to be easily re-sharpened on a belt sander.
- Approximate striking pin cycles are application dependent. In our lab tests, we obtained a minimum of 300 punches before resharpening and 10 resharpenings before replacing.
- Cannot mark any type of screws (but may be able to mark an adjacent area.)
Hex Size A.T.F. (across the flats) and Torque Limitations — TOP Ink Style
• The smallest we can mark is 1/2″ or 11mm.
• Torque Range is 4-150 Ft.Lbs. or 5.4-203.4 Nm*
Hex Size A.T.F. (across the flats) and Torque Limitations — SIDE Ink Style
• The smallest we can mark is 9/16″ or 14mm.
• Torque Range is 4-150 Ft.Lbs. or 5.4-203.4 N*
*NOTE: Please check your requirements with us. Torque output capacity will be limited by the Socket size or the Opening size of the head.