Production 'P' types version, with no setting scale, is designed to discourage unauthorised alteration, and must be set against a torque testing device such as Norbar's Professional Torque Tester.
Also available with a robust ratchet head.
Industrial No.4 TH, N·m/lbf·ft
Norbar has devised easy-to-use online calculators that support the correct application of torque in three key areas:
Norbar Torque Tools Inc. 36400 Biltmore Place, Willoughby, Ohio 44094, USA