An economical break-over SMA torque wrench for consistent, repeatable connector tightening and reliable RF measurements. The 5/16-inch (8 mm) opening fits SMA, 3.5 mm, and 2.92 mm connectors. Available in 5 or 8 in·lb and hand-calibrated in California.
Break-over action
Releases at the set torque to prevent over-tightening.
SMA / 3.5 mm / 2.92 mm
5/16-inch (8 mm) opening fits all three connector types.
Hand-calibrated in the USA
Calibrated by hand; certificate available on request.
Product Details
The SMA-TW is an economical break-over torque wrench for tightening SMA connectors to a consistent, repeatable torque, which protects connectors and improves the reliability of RF and microwave measurements. The break-over action releases once the set torque is reached, preventing over-tightening, and the standard 5/16-inch (8 mm) opening also fits 3.5 mm and 2.92 mm connectors. It is offered in two calibrated settings, 5 in·lb for brass connectors and 8 in·lb for stainless-steel connectors, and each wrench is hand-calibrated in California.
- Break-over torque wrench that releases at the set torque to prevent over- or under-tightening of SMA connectors.
- Standard 5/16-inch (8 mm) opening; also suitable for 3.5 mm and 2.92 mm connectors.
- Available in 5 in·lb (0.56 N·m) or 8 in·lb (0.9 N·m), each ±0.25 in·lb.
- Works bidirectionally; an arrow on the handle marks the calibrated direction for best accuracy.
- Hand-calibrated in California; a (non-accredited) certificate of calibration is available on request.
Specifications
General
| Type | Break-over torque wrench |
| Torque settings | 5 in·lb (0.56 N·m) or 8 in·lb (0.9 N·m) |
| Torque tolerance | ±0.25 in·lb |
| Opening | 5/16 in (8 mm) |
| Compatible connectors | SMA, 3.5 mm, 2.92 mm |
| Operation | Bidirectional (calibrated direction marked by handle arrow) |
| Calibration | Hand-calibrated; certificate available on request (non-accredited) |
Recommended torque
| CONNECTION | RECOMMENDED TORQUE |
| SMA, brass connectors | 5 in·lb (0.56 N·m) |
| SMA, stainless-steel connectors | 8 in·lb (0.9 N·m) |
| 3.5 mm or 2.92 mm to SMA | 5 in·lb (0.56 N·m) |
| 3.5 mm and 2.92 mm | 8 in·lb (0.9 N·m) |
Use the calibrated direction (marked by the arrow on the handle) for maximum torque accuracy. Specifications are subject to change without notice.