KS TOOLS 3/8 inch Spark Plug Torque Limiter, 24 Nm (516.1502)

Precision torque control at exactly 24 Nm — this KS TOOLS 3/8" drive torque limiter is the safeguard your spark plug threads deserve. Built from chrome vanadium steel with a matt chrome finish, it clicks audibly and tangibly the instant the preset torque is reached, eliminating any chance of overtightening.

Overview

Designed specifically for spark plug installation, this fixed torque limiter takes the guesswork out of tightening. Its mechanical click-type mechanism operates on a proven spring-loaded principle, delivering consistent results within ±6% accuracy. The 3/8" square drive fits standard sockets and ratchets, while the ball lock keeps the tool securely attached during use.

What stands out

• Fixed 24 Nm torque setting — ideal for most automotive spark plugs
• Audible and tactile click signals correct torque, preventing thread damage
• Durable chrome vanadium steel construction with corrosion-resistant matt chrome plating
• Compact 105 mm length for easy access in tight engine bays
• Meets DIN 3120 / ISO 1174 drive standards for reliable socket fitment

Technical details

• Drive size: 3/8" square
• Torque setting: 24 Nm (fixed)
• Accuracy: ±6%
• Material: Chrome vanadium steel
• Finish: Matt chrome-plated
• Overall length: 105 mm
• Drive locking: Ball lock
• Direction: Right-hand tightening
• Operating principle: Mechanical click-type
• Compatibility: For use with 3/8" drive sockets

Our verdict

A must-have for any DIY mechanic or professional workshop — this torque limiter ensures every spark plug is seated perfectly, protecting your engine from costly thread repairs.