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Grease Buster Tools

Shop Size Grease Buster. Clear out clogged grease fittings.


23 reviews
Open up clogged grease fittings with the Grease Buster. Simply fill with a solvent and tap the piston with a hammer. Updated design includes textured grip and two o-rings.
  • Cleans grease fittings & bearings
  • Uses penetrating oil and hydraulic pressure
  • Reduces down time. Much cheaper than new bearings!
  • Hose extension and pneumatic piston available



The LockNLube Grease Buster® is the toughest tools on the market to open clogged grease fittings.

The Shop Size Grease Buster is the most rugged version of his products, fit for heavy use and compatible with the pneumatic piston.

The Grease Buster’s piston, included with the product, is hollow and should be filled with a liquid (not aerosol) penetrating oil. Seat the piston in the Grease Buster, attach the coupler to your Zerk fitting, and tap the piston with a hammer. This forces the penetrating oil into the fitting and loosens it for regular greasing.

For customers with a pneumatic hammer, they might prefer using the pneumatic piston (sold separately) instead of the standard piston. Note that the pneumatic piston is only compatible with the Shop Sized model, not the Regular Size version.


The Grease Buster is the answer to a problem that many people have lived with for a long time. Plugged up grease fittings and bearings are a problem common in machinery. One greases a machine and the grease can dry out before the machine is used again. The tool consists of a heavy-duty adjustable hydraulic coupler, cylinder and a piston with a knob.

Instructions: Remove the piston. Fill the cylinder by pouring in a penetrating oil. Start the piston back into the cylinder. Place the tool onto the grease fitting and by tapping the piston, forcing the solvent into the fitting and or bearing. The key work is TAP. Using a lightweight hammer and small, rapid taps, work the penetrating oil into the fitting. You’re trying to dissolve the clog, not blast it out of the way. Repeat if necessary.


LockNLube provides a full 30-day money-back guarantee on all products purchased from its website. If you are dissatisfied with your purchase, you can return it to us by shipping the item back within 30 days of purchase. Once we receive your return, we will refund you the full purchase price of the item.

Please ensure that the item you are returning is repackaged securely, with all its component parts included. Please also include any documentation that came with your original order, such as a packing slip or order confirmation.


Return items to us by shipping to:

Lock and Lube
21 Technology Drive Suite #2
West Lebanon, NH 03784

For more information, please call 603.795.2298. We’re a small business and we’ll pick up the phone in New Hampshire when you call.


  • Opens clogged grease fittings
  • Uses penetrating oil and hydraulic pressure
  • One Year Warranty with normal use
  • Reduces downtime, cheaper than new bearings
  • Compatible with the Hose Extension and Pneumatic Piston
Customer Reviews
5.0 Based on 23 Reviews
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Anita W.
United States United States
Awesome service

Great ! Awesome customer service

Christopher M.
United States United States
Well designed and works great.

I thought I’d save a few bucks and buy a cheaper one, it lasted about four taps and blew all the solvent right out the back on my hand. With no way to take it apart and put a new O-ring in it I decided to spend a couple more bucks and get this one because I’ve had good luck with Locker and Lock&lube Products. I should’ve bought this from the start, it’s very well-designed and I was probably putting a little bit more tap pressure than I should’ve on it and it held up just fine. If you need one that works this is it. If you need a $20 paperweight get that other cheap POS.

United States United States
product performance

we find all your lock n lube products perform very nicely and we are glad to have them on hand . dale senn

Richard R.
United States United States
Another happy camper.

Working exactly as advertised. I’m really happy with my purchases. Thank you.

James K. Black
United States United States
Good Product to open up clogged grease zerks & joints

put the penetrating oil in it and put it on the zerk that wouldn't take grease and give it small rapid taps and it loosened up the old dried grease so the new grease would push out the penetrating oil and old grease & dirt the only thing I wish is it had a case to keep it in so I could keep up with it store it until needed again

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