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 Grease Gun Coupler

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

💪Rated to 10,000 PSI heavy-duty pressure

🔒Locks on securely

🔧Includes spare rebuild kit

€ 73.86

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Description

🔧 Lock it, load it, and level up your maintenance game!

BUILT TO LAST - Comes with a spare rebuild kit ensuring long-term, reliable performance.
PRESSURE READY - Engineered to handle up to 10,000 PSI for the toughest jobs.
HANDS FREE PRECISION - Lock-on coupler frees both hands for faster, mess-free maintenance.
UNIVERSAL COMPATIBILITY - Fits all grease guns and SAE/metric Zerk fittings for ultimate versatility.
QUICK RELEASE INNOVATION - Patented thumb lever enables fast, effortless attachment and removal.

The LockNLube Locking Grease Gun Coupler is a durable, steel and rubber tool designed for professional-grade lubrication. Featuring a secure lock-on mechanism, it allows hands-free operation and fits all grease guns and Zerk fittings. Rated to withstand pressures up to 10,000 PSI, it includes a spare rebuild kit for extended use and offers quick-release functionality for efficient maintenance. Backed by a 1-year warranty, it’s a top choice for reliable, mess-free grease application.

Specifications

ASIN	B00H7LPKKU
Best Sellers Rank	#510 in Automotive ( See Top 100 in Automotive ) #7 in Fuel Transfer & Lubrication Products
Color	Silver
Customer Reviews	4.7 4.7 out of 5 stars (32,200)
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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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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€ 73.86

Duties & taxes included

In stock

Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Finland.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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