• ISO B12 Standard Compliance — Fully interchangeable with all ISO 6150-B compatible couplings and plugs across your workshop fleet
• High-Flow 5.5mm Bore — Delivers 1,100 L/min at 6 bar, ensuring minimal pressure drop even under sustained tool demand
• 35 Bar Rated — Engineered for high-pressure industrial environments; exceeds the requirements of most workshop compressor systems
• Steel Construction — Resists impact, corrosion, and wear in harsh workshop conditions where brass or aluminium fittings fall short
• One-Hand Quick Release — Sleeve-operated connect/disconnect mechanism reduces downtime and tool changeover time
• Wide Temperature Tolerance — Performs reliably from −40°C to +100°C, suitable for both cold-store and high-heat industrial environments
• 6mm Hose Tail — Secure barbed connection for 6mm bore air hose; no additional adaptor required

Where This Fitting Performs

Designed for professional compressed air systems in automotive workshops, engineering facilities, fabrication shops, and industrial production lines. Ideal for connecting pneumatic impact wrenches, spray guns, ratchets, grinders, and blow guns to 6mm airline hose assemblies. The ISO B12 standard ensures compatibility with the majority of professional-grade pneumatic tools and airline infrastructure installed across UK workshops.

The ISO B12 (also known as the BSP or European standard) is the most widely adopted quick-release coupling standard in UK and European workshops. Its sleeve-operated mechanism provides a positive, leak-free seal under pressure, while the standardised geometry ensures cross-brand compatibility. Specifying ISO B12 throughout your airline system eliminates adaptor proliferation and reduces the risk of mismatched connections causing pressure loss or tool damage.