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Silver torque screwdriver with T-handle and knurled grip

Firstinfo Tools Co., Ltd.

Firstinfo Tools Co., Ltd. Precision Torque Screwdriver 10-50 in-lbs with T-Handle

SKU CH-9KYF-N2430

Precision torque screwdriver covers 10-50 in-lbs in 1 in-lb steps with ±6% accuracy and a quick-release 1/4 inch hex holder

  • TypeTorque Tools
  • Precise 1 in-lb steps from 10 to 50 in-lbs
  • ±6% accuracy certified to ASME B107.300-2010 and ISO 6789
  • Cam mechanism slips automatically at set torque to prevent over-tightening
  • Quick-release 1/4 inch hex holder secures bits and releases them easily
  • Extra T-handle provides additional leverage for high-torque applications

Precision Torque Screwdriver 10-50 in-lbs

The Firstinfo Precision Torque Screwdriver delivers adjustable torque from 10 to 50 in-lbs in 1 in-lb increments. Its cam mechanism automatically slips at the set value to prevent over-tightening. A 1/4 inch universal hex bit holder with quick-release design secures bits firmly and allows fast changes. The tool includes an extra T-handle for additional leverage on high-torque applications.

Replaces Fixed-Limit or Coarse-Adjustment Drivers

This driver replaces fixed-torque tools and models that adjust only in 5 in-lb steps. The finer 1 in-lb resolution lets technicians match exact specifications for electronics, instrumentation, and assembly work. The jump is worth it when a job demands repeatable accuracy documented by an individual calibration certificate traceable to ASME B107.300-2010 and ISO 6789 standards.

Sustained Use With Calibrated Consistency

Under repeated cycling the spring-loaded locking collar holds the selected setting without drift. The aluminium scale and tube resist wear while keeping the tool light during extended sessions. The ergonomic non-slip grip reduces operator fatigue, and the quick-release holder prevents dropped bits during continuous fastening. Each unit carries a unique serial number linked to its ±6% accuracy certification.

Highlights

  • Precise 1 in-lb steps from 10 to 50 in-lbs
  • ±6% accuracy certified to ASME B107.300-2010 and ISO 6789
  • Cam mechanism slips automatically at set torque to prevent over-tightening
  • Quick-release 1/4 inch hex holder secures bits and releases them easily
  • Extra T-handle provides additional leverage for high-torque applications

Specifications

TypeTorque Tools

Questions about this item

What bit holder size does the 10-50 in-lbs torque screwdriver use?

It uses a 1/4 inch universal hex bit holder with a quick-release locking knob for fast bit changes.

How do you set the torque value on this screwdriver, and what step is often missed?

Press the locking knob to unlock, rotate the handle to the desired value such as 36 in-lbs reading both scales, then release the knob to lock; forgetting to release the knob leaves the setting unlocked.

What calibration standard applies to this tool and what does the certificate show?

It is certified to ASME B107.300-2010 and ISO 6789 with ±6% accuracy, and a serial-numbered calibration certificate is included.

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