Set the dial
Flip down the adjustment-knob cover, turn the knob to the target value and close the cover to secure it. Recheck the displayed setting before engaging the fastener.
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Keep the working geometry controlled
Fit the socket and keep the ratchet head parallel to the wrench body for best accuracy. The flex joint helps clearance but can reduce accuracy when flexed. Grip the center of the handle and pull slowly clockwise. Stop at the click. Never extend the handle.
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Clean and store
Wipe with a dry lint-free cloth; do not immerse in cleaner. Store in its case in a dry place. Unlike a spring-loaded micrometer wrench, these split-beam models may remain at any setting. Leave internal servicing and recalibration to an accredited measurement laboratory; do not dismantle the handle.
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- Tekton — Split Beam Nm product manual ↗Reviewed Oct 8, 2026
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