Please see the frequently asked questions
Warren & Brown torque wrenches are tested & calibrated across the scale to within +/- 2% of scale reading
Warren & Brown have been manufacturing torque wrenches for over 40 years.
Warren & Brown deflecting beam torque wrenches last many years. We provide a lifetime warranty on the deflecting beam!
Our torque wrenches meet AS/NZS 4115-1993 & ISO-6789
Both types have their advantages, however micrometer type Torque wrenches use a coil spring to apply resistance. Coil springs may lose their compression properties if left under load for long periods of time. It is impossible to leave the deflecting beam under load and therefore the calibration will not be adversely affected.
Depending on usage, generally every 12 months or 10,000 cycles. We frequently see 20 year old torque wrenches that are still accurate.