Features: Universal Compatibility: Designed with 1/4"-28 UNF thread (approx M6) and standard 1/4" quick connector to fit most grease guns and fittings for seamless operation across automotive and industrial applications. High Pressure Resistance: Built to withstand up to 1500psi working pressure ensuring reliable performance under demanding conditions without leakage or failure. Dustproof Design: Each needle comes with a protective cap that prevents dirt and debris from entering the oil passage maintaining system cleanliness and prolonging service life. Easy To Use: Straight needle configuration allows precise alignment with grease ports enabling smooth and accurate lubricant delivery even in tight spaces. Multi Scenario Application: Ideal for routine maintenance on vehicles bicycles machinery and electric equipment meeting diverse lubrication needs for both DIY enthusiasts and professional mechanics. Specifications: Material: Zinc Alloy (Grease Nipple), Stainless Steel (Grease Needle) Thread Size: 1/4"-28 UNF (Approx M6) Needle Connector: Standard 1/4" Quick Coupler Needle Diameter: Approx 3mm Working Pressure: Up to 1500psi (Lab Tested) Total Weight: Approx 75g (Entire Set) Include: 2 * Large Needle 5 * Grease Needle 5 * Needle Tube