Grease gun mouthpiece with double handle design offers improved leverage for easier oiling operation. The dual-handle construction enhances control and reduces hand fatigue, providing a secure, non-slip grip during use. Equipped with three reinforced jaws, the coupler supports a maximum working pressure of up to 10,000 PSI. The nozzle features a conical rubber sealing ring that ensures reliable performance, maintaining a tight seal and preventing leaks even under high pressure. Constructed from high-quality alloy steel, the grease gun coupler is durable and resistant to wear. The internal spring is designed for high elasticity and toughness, supporting long-term, continuous use. The conical rubber seal provides a secure fit, minimizing leakage and ensuring consistent performance. The improved G-coupler design helps prevent axial bending during connection and features a locking mechanism that securely attaches to grease nipples. This locking function helps reduce contamination during lubrication tasks. The 6-hole nozzle expands outward when engaged, ensuring a firm lock. Release is simple—press the release lever with your thumb to disconnect, even under pressure. The coupler can be removed easily without pulling or using tools, even when mounted in tight spaces. Compatible with all standard grease guns, including pneumatic, manual, and electric models. Features a 1/8 inch NPT threaded connection. Ideal for use with shielded joint shafts, U-joints, harvester components, and other applications with recessed grease fittings. Note: Measurements are manually taken and may vary by 1–3 cm. Color may vary slightly due to lighting and screen settings. Actual product may differ slightly from images shown.