T-Top Coil Cores – 10-00 Pure Iron (Heat Treated)

Locked in at the top. Maximum response through the core.

Lucky’s T-Top Coil Cores are built for builders who want clean retention, fast response, and maximum efficiency—without relying on traditional top clips.

Proudly made in the USA at Lucky MFG, these cores are precision crafted from 10-00 (1000) pure iron and heat treated (annealed) to deliver elite magnetic performance, with an integrated T-top design that locks the core securely into the top washer.

No top clip needed. The core does the work.

What Makes T-Top Different

• Integrated T-Top Design – Acts as a built-in top clip, locking into the washer
• Cleaner Assembly – Fewer parts, less hardware clutter
• Secure Fit – Reduces movement and keeps cores seated properly
• Faster Setup – Simplifies builds and rebuilds
• Made in the USA at Lucky MFG – Built for professional builders

Pure Iron Performance (10-00 Heat Treated)

When properly annealed:

• Magnetic domains align more easily
• Extremely low coercivity (fast magnetize/demagnetize)
• Minimal energy loss per cycle

Result:

More power converted into motion. Less wasted as heat.

Performance Benefits

• Extremely Fast Magnetic Response
• Strong Pull at Lower Voltage
• Cooler Running Coils
• Crisp, Snappy Hit
• Maximum Efficiency Output

Available Sizes & Configuration

• Diameter: 5/16"
• Lengths:
• 1"
• 1 1/8"
• 1 1/4"
• Retention Setup:
• Bottom: Uses C-Clip
• Top: T-Top design locks into washer (no top clip required)

Technical Specifications

• Material: 10-00 (1000) Pure Iron
• Process: Heat Treated / Annealed
• Manufacturing: Made in the USA at Lucky MFG
• Design: T-Top integrated retention
• Magnetic Properties: High permeability, low coercivity
• Function: Maximum magnetic efficiency + simplified assembly
• Compatibility: Coil tattoo machines
• Use Case: High-performance builds and advanced setups

Best For

• High-speed liners
• Builders who want cleaner, simplified assemblies
• High-end custom machines
• Efficiency-focused builds

⚠️ Builder Notes

This is high-performance material—tuning matters.

• Can feel fast and aggressive if not balanced
• Less forgiving than standard cores
• Requires proper pairing with springs, capacitor, and voltage

Built for experienced builders dialing in performance.

Why T-Top?

Traditional cores rely on clips at both ends. T-Top cores simplify the build by integrating retention into the core itself—reducing parts while maintaining a secure, stable fit.

Combined with 10-00 pure iron, you get both mechanical simplicity and peak magnetic performance.

Coil Core Guide