USAG 1/2" Drive Flex Head Torque Wrench (810F200) - this is the popular Facom 208 Series torque wrench with a flex head for access in tight spaces. Great for tightening cylinder head and wheel bolts. Range is 40-200nm (25-150 ft lbs). 72 tooth (5 degree increments). Touch and sound signals when preset torque is reached. Supplied in a protective storage tube. Made in Italy.
- Hinged jointed head to work in narrow spaces
- Inclination ±20° (Note - when the wrench head is at full flex, the torque setting must be increased by 5%)
- Adjustable model for clockwise tightening
- Precision ±4% of the preset torque value
- Readings in Nm
- Sensible and audible alarm on reaching preset torque value
- Automatic resetting on pressure release after disengagement
- Supplied with test certificate
- Alternate - Facom S.208-200 (w/o flex head)
USAG 1/2" Drive Flex-Head Click Type Torque Wrench (Model 810 F 200). This specialized mechanical torque wrench is engineered with an articulating head to navigate tight, low-clearance engine bays and mechanical compartments.
- Torque Capacity: 40–200 Nm (equivalent to ~30–150 ft-lbs) with 0.5 Nm scale resolution.
- Drive Size: 1/2" male square drive featuring a built-in reversible ratchet.
- Hinged Flex Head: The wrench head articulates smoothly up to ±20° inclination to circumvent surrounding obstructions.
- Calibration & Accuracy: Provides ±4% accuracy for standard right-hand (clockwise) tightening. Each unit ships with its own factory calibration test certificate.
- Audible Alerts: Triggers a distinct tactile click and audible snap precisely when your target preset torque value is hit.
- Overall Length: Measures 500 mm (roughly 19.7 inches) for optimal lever control at higher torque limits.
- Cross-Reference Twin: This model is the direct Italian-market catalog equivalent to the Facom S.208-200 platform variation built under the parent Stanley Black & Decker umbrella.
⚠️ Critical Torque Adjustment Rule - Because angling the flex head changes the effective leverage geometry, you must compensate for the angle manually when using the wrench tilted.
- The 5% Angular Rule: When executing a torque sequence with the head flexed at or near its ±20° limit, you must increase your target torque setting by 5% on the micrometer scale to achieve proper tightening.
| Application Target |
Formula Calculation |
Final Handle Scale Setting |
| Straight Application (0°) |
Standard targeted value |
No Adjustment Required |
| Angled Application (±20°) |
Target Torque x 1.05 |
Set Wrench 5% Higher |
| Example 1 |
90 Nm target required |
Set scale to 94.5 Nm |
| Example 2 |
100 Nm target required |
Set scale to 105.0 Nm |
