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JL3621
This grease fitting thread tester is a simple and essential tool for quick identifying grease fitting threads across multiple standards. This identification plate includes thread standards such as Metric, Imperial, British, and US, ensuring universal compatibility. This thread tester is especially useful for mechanics, maintenance team, and anyone who is handling equipment with mixed standard fittings. By confirming the correct size and pattern before installation, it helps prevent potential damage from using incorrect fittings and helps saving guess time during work. Overall, this grease fitting thread tester is a perfect tool to streamline your lubrication process.

Technical Parameters:
Model NO: JL3621
Standards: Metric, Imperial, British, US
The tester includes the most common grease fitting thread standards: Metric (6x0.75, 6x1, 8x1, 8x1.25, 10x1, 10x1.5), British (BSW, BSF, BSP), and US (UNF/ANF, NPT). This comprehensive coverage makes it suitable for machinery and equipment from around the world.
The tester’s clearly labeled slots allow for instant thread matching. Simply insert the grease fitting into the corresponding slot—if it fits, you’ve identified the correct thread size and standard. No measuring tools or technical expertise required.
Using the wrong grease fitting can strip threads, leak grease, or damage machinery components. The JL3621 helps eliminate this risk by confirming the correct fit before installation, saving time and money on repairs and replacements.
The JL3621 includes over 20 common thread sizes across Metric, Imperial, British, and US standards—covering the vast majority of grease fittings used in automotive, industrial, and agricultural applications.
Yes, the tester is designed for simplicity. Each slot is clearly labeled with the thread standard and size, so even beginners can match fittings in seconds. No prior knowledge of thread standards is required.
While the tester works best with new or lightly worn fittings, it can still identify most worn fittings by their thread pattern. For severely damaged fittings, we recommend replacing the fitting before testing.
Wipe the tester with a clean, dry cloth after use to remove grease or debris. Avoid using harsh chemicals, as they may damage the labeling.
This grease fitting thread tester is a simple and essential tool for quick identifying grease fitting threads across multiple standards. This identification plate includes thread standards such as Metric, Imperial, British, and US, ensuring universal compatibility. This thread tester is especially useful for mechanics, maintenance team, and anyone who is handling equipment with mixed standard fittings. By confirming the correct size and pattern before installation, it helps prevent potential damage from using incorrect fittings and helps saving guess time during work. Overall, this grease fitting thread tester is a perfect tool to streamline your lubrication process.

Technical Parameters:
Model NO: JL3621
Standards: Metric, Imperial, British, US
The tester includes the most common grease fitting thread standards: Metric (6x0.75, 6x1, 8x1, 8x1.25, 10x1, 10x1.5), British (BSW, BSF, BSP), and US (UNF/ANF, NPT). This comprehensive coverage makes it suitable for machinery and equipment from around the world.
The tester’s clearly labeled slots allow for instant thread matching. Simply insert the grease fitting into the corresponding slot—if it fits, you’ve identified the correct thread size and standard. No measuring tools or technical expertise required.
Using the wrong grease fitting can strip threads, leak grease, or damage machinery components. The JL3621 helps eliminate this risk by confirming the correct fit before installation, saving time and money on repairs and replacements.
The JL3621 includes over 20 common thread sizes across Metric, Imperial, British, and US standards—covering the vast majority of grease fittings used in automotive, industrial, and agricultural applications.
Yes, the tester is designed for simplicity. Each slot is clearly labeled with the thread standard and size, so even beginners can match fittings in seconds. No prior knowledge of thread standards is required.
While the tester works best with new or lightly worn fittings, it can still identify most worn fittings by their thread pattern. For severely damaged fittings, we recommend replacing the fitting before testing.
Wipe the tester with a clean, dry cloth after use to remove grease or debris. Avoid using harsh chemicals, as they may damage the labeling.