Upgrade your equipment maintenance with our hydraulic grease zerk assortment, crafted from durable Iron nickel plating, ensuring long-lasting high-performance. The set includes 45 pieces with various sizes, M6, M8, and M10 fittings, and 45, 90, and straight heads, facilitating precise lubrication even in tight spaces. These grease fittings act as hydraulic check valves for efficient lubrication, enhancing the lifespan of your mechanical components. The plastic storage box keeps them organized and portable, while identification charts simplify part selection. Trust in our high-quality assortment for optimal maintenance results.. Features: 1. Made of high quality metal material, which is high hardness, high strength, wear resistant and long service life. 2. Mainly suitable for hot air guns which equipped with diaphragm pump. 3. Installed on hot air guns for assembling and disassembling electric elements of different sizes. 4. Resistant to high temperature, no leakage, convenient to replace. 5. Easiest way to mechanically lubricate, for linking between grease guns and mechanical equipment. Specification: Item Type: Grease Nipple Material: Iron Nickel Plating Length: M6*1 / Straight: 12cm/4.7inch M6*1 / 45: 17cm/6.7inch M6*1 / 90: 22cm/8.7inch M8*1 / Straight: 14cm/5.1inch M8*1 / 45: 17cm/6.7inch M8*1 / 90: 22cm/8.7inch M10*1 / Straight: 18cm/7.1inch M10*1 / 45: 21cm/8.3inch M10*1 / 90:26cm/10.2inch Item Size: 13 * 7 * 2cm / 5.1 * 2.8 * 0.8inch Package Weight: Approx. 284g Package List: 45 * Grease Nipples