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Research-based buying guide: We have not independently tested this product. Specifications below are attributed to the linked manufacturer information.
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The 24330 is a three-eighths-inch-drive micrometer torque wrench with a 10–80 ft-lb range. Choose a torque instrument by the actual fastener specification and documented measuring capability, not drive size alone.
Check model status and documentation
TEKTON’s current resources list 24330 among discontinued micrometer models, while retaining its manual. A discontinued model may still be offered by other sellers; verify condition, contents and support before buying. Do not assume that a listing for a newer model has the same range or instructions.
Accuracy claims need context
The manufacturer manual states a shipped accuracy of ±4%. That does not certify the present condition of every new-old-stock or used example. TEKTON also states that its micrometer torque wrenches do not include a calibration certificate. If your work requires one, establish that requirement and appropriate documentation before purchasing.
Use the documented measurement direction
A reversible ratchet does not necessarily mean torque is measured in both directions. Check the exact manual for measurement direction, range, setting and storage requirements. A click is an operating indication to interpret according to those instructions, not a guarantee against overtightening in every use.
Our research conclusion
We have not calibrated this wrench, tightened vehicle fasteners with it or verified long-term accuracy. The earlier first-person claims and statement that every fastener was secured correctly have been removed. Match the instrument to the equipment manufacturer’s torque requirements and arrange any required inspection or calibration.
Sources and further reading
- TEKTON 24330 model information
- TEKTON torque-wrench support and discontinued manuals
- TEKTON 24330 operator manual
Research checked November 8, 2026. Verify the exact model and current seller terms before ordering.
Check a retailer listing
Confirm the exact model, selected option, included items and seller terms before ordering. Price and availability are set by the retailer.
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This post may contain affiliate links which means I may receive a commission for purchases made through links. Learn more on my Private Policy page.
