Does this work with Milwaukee grease guns?

This does not work on the older Milwaukee m18 grease guns. They used a metric threaded hose on the older ones. The newer guns have standard thread and it will fit those. Take the current connector off the end of your grease gun hose. If the first 1/8 inch of the hose is not threaded, then you have a metric hose and this lock lune will not fit.

Where is this product manufactured?

It is a quality product made in South Africa by Gurtech.

After installing it, I couldn't depress the gun's pump. What did I do wrong?

Between myself and friends we have successfully installed five of these fittings without any problems. As per the other reviews, I would first check your gun to see if was in fact pumping grease, then reinstall the coupler and try again, before you put it on a fitting. Could be that the fitting jerk that you tried it on was frozen. If it still does not allow grease to flow, it is defective and you will need to return it.

It is just the fitting or does it include the flexible line?

It is just the fitting. The hose was included to give context and sense of scale.

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LockNLube Locking Grease Gun Coupler, 1/8-Inch NPT, Rated To 10,000 PSI

LockNLube Locking Grease Gun Coupler, 1/8-Inch NPT, Rated To 10,000 PSI

Product ID: 3992963

Details

Brand
LockNLube
Global Trade Identification Number
Item dimensions L x W x H
3.45 x 0.63 x
Manufacturer
LockNLube
Material
Steel Rubber
Maximum Operating Pressure
10000 Pound

🔒Locks on securely for hands-free use

🔧Universal fit for all grease guns & Zerk fittings

⚙️Rated up to 10,000 PSI heavy-duty pressure

372 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Lock it, grease it, forget it — maintenance made effortless!

BUILT TO LAST - Includes a spare rebuild kit ensuring long-term, reliable performance.
VERSATILE REACH - Works seamlessly with SAE and metric Zerk fittings, perfect for tight spots.
LOCK LOAD EFFICIENCY - Secure lock-on coupler frees both hands for faster, mess-free maintenance.
UNIVERSAL COMPATIBILITY - Fits all manual, battery, and pneumatic grease guns with 1/8-inch NPT threading.
QUICK RELEASE INNOVATION - Patented thumb lever allows fast attachment/removal even under 10,000 PSI pressure.

The LockNLube Locking Grease Gun Coupler is a durable, steel and rubber tool designed for professional-grade lubrication tasks. Rated to withstand pressures up to 10,000 PSI, it securely locks onto all standard grease guns and Zerk fittings, enabling hands-free operation. Its rebuildable design with a spare kit ensures longevity, while the patented quick-release thumb lever streamlines maintenance workflows. Backed by a 1-year warranty, this compact 3.45-inch coupler is a must-have for efficient, mess-free machinery upkeep.

Specifications

ASIN	B00H7LPKKU
Best Sellers Rank	#655 in Automotive ( See Top 100 in Automotive ) #8 in Fuel Transfer & Lubrication Products
Color	Silver
Customer Reviews	4.7 4.7 out of 5 stars (32,144)
Date First Available	December 9, 2013
Included Components	Just the item
Item Package Quantity	1
Item Weight	4 ounces
Item model number	1/8\\\" NPT
Manufacturer	LockNLube
Material	Steel, Rubber
Maximum Pressure	10000 psi
Part Number	GC81011
Product Dimensions	3.45 x 0.63 x 1.66 inches
Size	NPT With Spare Rebuild Kit
Warranty Description	1-Year Warranty

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