KING TONY Torque Wrench Specifications

FISHER DISCOUNT Torque Wrench Specifications

• Accuracy Level: Grade 3 (±3%)
• Material: Chrome vanadium steel
• Origin: Taiwan
• Ratchet: 45-teeth quick-release, supports forward and reverse functions.
• Packaging Includes: Torque wrench, user manual, unique serial number with factory calibration certificate, and a plastic box.

Product Features

🔧 The FISHER DISCOUNT PRO Series Torque Wrench is a professional-grade tool with forward and reverse torque functionality, ideal for both standard and reverse-threaded applications.

• 🛠️ Material: Made of chrome vanadium steel with an aluminum alloy anti-roll grip for easy handling.
• 🔒 Locking: A pull-down ring enables effortless one-step handle locking.
• 🔬 Markings: Laser-etched clear scales for precise readings.
• 🛡️ Sealed Design: Fully enclosed structure prevents dust and debris from entering.
• 🛢️ Lubrication: Internal components, including the spring, are fully lubricated to reduce friction and enhance durability.
• 💎 Precision: Ensures high accuracy and extended service life.

Best Uses: Ideal for labs, repair shops, bicycle and motorcycle assembly, tire and rim installation, and engine repairs.

• 📅 Warranty: 1 year.

How to Choose the Right Torque Wrench

For Bicycle Assembly & Repair

• 🛴 Torque Range: 2–24 Nm.
• If you don’t own sockets, opt for a set with matching bits.

For Automobiles & Motorcycles

• 🔧 Spark Plug Installation, Drain Plugs, and Oil Filters: Torque range 10–60 Nm.
  • Match the wrench head to your existing socket set or choose a 3/8-inch drive.

For Car Engine Heads and Wheels

• 🚗 Torque Range: 20–210 Nm, with a 50 cm wrench for easier handling.
• For higher torque, opt for models supporting 50–350 Nm. Longer handles reduce effort.

Understanding Wrench Drive Sizes

Wrench drive sizes refer to the square head size of the ratchet, expressed in inches:

• 1/4-inch Drive: 6.35 mm (small drive).
• 3/8-inch Drive: 10 mm (medium drive; also noted as 9.5 mm).
• 1/2-inch Drive: 12.5 mm (large drive).

🔄 Conversion: 1 inch = 25.4 mm. Drive sizes are standardized globally.
💡 Tip: Use adapters to match incompatible sockets and wrenches.

Why So Many Drive Sizes?

• ⚙️ Specialized Applications: Smaller drives are ideal for tight spaces or deep holes (e.g., a 10 mm cavity requires a 1/4-inch socket).
• 💪 Torque Capacity:
  • 1/4-inch: Max 30 Nm.
  • 3/8-inch: Max 135 Nm.
  • 1/2-inch: Max 360 Nm.

Proper Use and Maintenance

• 📢 First-Time Use: Familiarize yourself with the feedback mechanism. A torque wrench doesn’t stop or slip after reaching the set torque—continuing to tighten may damage screws or threads.
• 🛠️ Pre-Use Prep: For new or idle wrenches, set the wrench to the maximum torque and release it three times to "warm up" and lubricate.
• 💾 Storage: Always store the wrench at the lowest torque setting to relax the internal spring.