Lisle Torque Angle Meter 1/2" Drive — Universal-Fit with Clear Degree Scale (Skin-Pack)

The Lisle 28100 Torque Angle Meter is a 1/2" drive, universal-fit angle gauge designed to measure and apply precise rotation for torque-to-yield fasteners.

When working with modern engines and assemblies that require torque-to-yield (TTY) tightening, a conventional torque wrench alone often isn't enough. The Lisle 28100 supplies a clear, repeatable way to measure angular rotation after an initial torque application. Packaged in a protective skin-pack, this gauge is sized for standard 1/2" drive sockets and built to integrate easily into most professional and DIY toolkits.

How does the Lisle torque angle meter help when tightening head bolts?

The meter lets you track the number of degrees a bolt turns after reaching a specified preload. That ensures bolts that must be tightened by a precise angle—rather than just torque—reach the correct clamp load. It reduces guesswork and improves consistency across fasteners.

• Measures degrees of rotation after torque is applied
• Compatible with torque-to-yield procedures for head bolts
• Mounts to a 1/2" drive for direct use with common torque wrenches

Will this fit my existing 1/2" drive tools and sockets?

Yes. The Lisle 28100 is built for universal compatibility with standard 1/2" drive systems. It connects directly to sockets and extensions to work alongside the torque wrench already in your toolbox. No special adapters are normally required.

• 1/2" drive interface fits most shop and home torque tools
• Works with standard sockets and extensions
• Universal fit type for broad tool compatibility

How easy is it to read and use under shop conditions?

The meter’s scale and pointer are designed for straightforward interpretation during fastening operations. It mounts securely and stays visible while you apply the final angle, which is helpful in cramped or awkward engine bays. The skin-pack keeps the tool protected until use and simplifies storage in a parts drawer or on a pegboard.

• Clear angular scale for quick degree readings
• Durable construction for workshop use
• Skin-pack protects the tool and makes it easy to hang or display

What tasks besides head bolts can it assist with?

Any fastener specified to be tightened by a set angle after initial torque is a candidate. That includes certain suspension, drivetrain, and cylinder head hardware found in many vehicle makes and industrial assemblies. Use it when manufacturers specify a torque-plus-angle procedure to meet clamp load requirements.

• Useful for TTY fasteners across automotive and industrial jobs
• Applicable to suspension and drivetrain components when angle specs are given
• Aids repeatable, uniform fastening across multiple bolts

Who is this for? The Lisle 28100 Torque Angle Meter is aimed at professional mechanics, automotive technicians, and experienced DIYers who follow manufacturer torque-plus-angle specifications. If you perform engine work, head-gasket jobs, or any repair that lists an angular tightening step, this compact, 1/2" drive gauge gives a reliable, easy-to-read way to meet those requirements without guessing.