The Voice of
Torque Control

You are here: Products  >  Torque Wrenches  >  TT Wrenches  >  TTi Adjustable Ratchet  >  TTi20 3/8", 4 - 20 N·m, 35 - 180 lbf·in

TTi20 3/8", 4 - 20 N·m, 35 - 180 lbf·in

The Norbar TTi Torque Wrenches are accurate, easy to set and are comfortable in use.  They are finished in an attractive and durable satin chrome plate. This TTi20 model is supplied with a 3/8" reversible ratchet.

Part number: 13831
EAN Bar Code: 5060207563482
NATO number: 5120-99-313-7261
Accuracy: ±3%
Operates between:
4.00 - 20.00 N·m (0.05 Increment)
35.00 - 180.00 lbf·in (0.50 Increment)

  • Micrometer Scale for simple and error free setting. (On dual scale wrenches, the micrometer increment applies to the N·m scale.)
  • Quick and Light Adjustment: adjustment over the entire scale can quickly be achieved and with minimal effort in approximately ten complete turns (exact number varies by model).
  • Comfortable, Durable Handle: the handle is constructed using two materials; a base material for strength overlaid with a soft feel grip for comfort and slip resistance.
  • The handle material and lens resist chemicals in common usage in the automotive, aviation and industrial environments.
  • Meets the requirements of ISO 6789-1:2017

  • Length: 230 mm
  • Square Size: 3/8"
  • Weight: 0.4 Kg
  • Ratchet Diameter: 30 mm
  • Engagements per Revolution: 72


Operators Handbook

Associated Ranges

Product Selector

Find a Distributor

Norbar Videos

What Our Customers Say

Download Our Apps


Use Our Calculators

Norbar has devised easy-to-use online calculators that support the correct application of torque in three key areas:

  1. Unit conversion to assist international measurement definitions.
  2. Torque extension for setting correct values
  3. Torque tension to identify precise levels of torque to be applied for individual applications.

NORBAR TORQUE TOOLS LTD. Wildmere Road, Banbury, Oxfordshire, OX16 3JU, United Kingdom
Registered Office as above - Registered in England No. 380480 - VAT No. GB 119 1060 05