FISHTAIL™ Universal Barrel Extension System Launch
Introducing the LOCKTON FISHTAIL™ Universal Barrel Extension System
LOCKTON is proud to launch FISHTAIL™, a simple but powerful innovation designed to solve one of the most common challenges in modern door hardware — extending inline oval cylinders without changing the barrel, keying, or restricted system.
Purpose‑designed for locksmiths and security professionals, FISHTAIL allows any standard 32mm inline oval barrel to operate reliably in 50mm or 62mm oval cylinders, making it ideal for smart locks, thick doors, and extended hardware applications.
What Is FISHTAIL?
FISHTAIL is a two‑component universal barrel extension system that converts a standard‑length inline barrel into a longer‑format oval cylinder configuration — while maintaining full system integrity.
Unlike traditional extension methods that require specialised cylinders or complex multi‑piece assemblies, FISHTAIL delivers a clean, secure, and universally compatible solution.
How the FISHTAIL System Works
FISHTAIL uses a precision two‑piece drive arrangement:
1. FISHTAIL Cam (Male)
- Fixes directly to the rear of any standard 32mm inline barrel
- Secured using two dedicated FISHTAIL fixing screws
- Transfers rotational drive accurately into the extension
2. FISHTAIL Extension Coupler (Female)
- Slides over the fishtail drive section
- Forms a solid, one‑piece extension inside the oval cylinder bore
- Accepts any standard oval cylinder cam
Once assembled, the system delivers strong, smooth, and accurate rotation, suitable for high‑quality restricted key systems and demanding installations.
Why Choose FISHTAIL?
FISHTAIL has been engineered for real‑world locksmithing and commercial applications:
- Universal compatibility with major inline restricted key systems
- Extends standard 32mm barrels to suit 50mm or 62mm oval cylinders
- Maintains existing keying and system integrity
- Two‑part modular design for strength and precision
- No special tools or complex setup required
- Ideal for:
- Smart‑lock installations
- Thick or oversized doors
- Retrofit and upgrade projects
- Commercial and high‑security environments
Built for Modern Installations
As doors, furniture, and access hardware continue to evolve, longer cylinders are increasingly required. FISHTAIL provides a future‑proof solution that allows installers to adapt existing barrels and restricted systems to new applications — without compromise.
Whether upgrading legacy installations or standardising inventory across multiple door types, FISHTAIL delivers flexibility, strength, and simplicity in one elegant system.
At LOCKTON, we continue to develop installer‑driven solutions that combine engineering precision, compatibility, and practical efficiency.
FISHTAIL™ is available now through the LOCKTON dealer network.
Visit: www.locktonsecurity.com