Astro Pneumatic Tool101 Mini Grease Gun

I have a few of these things. They work well. They not like the cartridge type grease guns tho. They work best with a thinner grease like 00. I use these to grease my chainsaw bars and such and they work well. One fill up lasts a long time. They low priced enough that I have one on the table where I clean and sharpen my chain and one in my chainsaw bag. I have a couple on the shelf in case I lose or break one.If you have a chainsaw bar that requires sprocket grease, get a bottle of 00 grease and this little grease gun. Works great. A lot cheaper than buying those disposable things.

Easy to use, works perfectly, feels like it’ll hold up and it’s cheap.

Great quality main use is for bicycle greasing. Well constructed and will last a long time.

A good little mini grease gun that works fine now that the tip is drilled out. (yes the top is blue because I painted it to tell it apart from others on the workbench). After I filled it with Park Bicycle Grease using an old spoon, I could not get any grease out, no matter how hard I tried. Finally looked at the tip and the hole, if there even was a hole, was too small to let any grease out. The smallest bit I have is 1/16" so I drilled the tip out with it. Just took a few seconds, and now it works just fine. If I had had a smaller wire guage bit I would have used it, but 1/16" is fine and lays a nice bead of grease. Should come from the manufacturer with a better tip.

This thing is awesome. I thought it took cartridges but it doesn’t, which is great. I fill with my large grease gun, slap it down until full, screw on cap, push from bottom to prime with a screwdriver and it works great! Very happy with this little grease gun for my chainsaws.

These are nice to have. Have several with different greases in them and it puts it right where you need it. Also use one to grease up air tools that have the needle valves in them. Work just as they should.

I can see why it's received some bad reviews. Likely because they didn't correctly full and prime it. You need to make sure you get all the air out. Search for YouTube videos. It's simple.

This review is for the Astro Pneumatic 101 Mini Grease Gun with Needle Nozzle sold by ToolTopia from the Amazon Market. The grease gun cost $7.70 and ToolTopia charged $7.99 for "standard" shipping. (The total was $15.69.) The shipping cost seemed excessive for such a small item but it was delivered priority mail. I would have preferred a less expensive shipping option. I dislike paying more for shipping than the item, itself---especially when it is unnecessary.The grease gun that arrived was the same design as the one in the product photo, but it did not match the photo. There were two differences:1 - The grease gun in the photo appears to be made from a dull galvanized steel. The grease gun that arrived was made from a polished/chrome steel that looked much better.2 - The filling instructions on the side of the grease gun did not match those in the photo. This is where I ran into trouble because the last instruction image (at the bottom of my grease gun) was confusing. It showed the user sticking a long object into the bottom of the grease canister to push its piston up to compact the grease and remove any air. The object appeared to have a pointed end (facing away from the grease gun) as if it were a pencil. But the bottom of the grease canister has a key hole that is too small for a pencil to fit through and the key hole shape of the opening made me wonder if a part was missing from my grease gun. (Remember, the filling instructions I'm talking about are different on the actual grease gun and do not match the ones in the photo.)I contacted ToolTopia and they didn't appear to understand what I was talking about and did not seem to be familiar with the product. I sent them a second message asking them to simply look at the bottom picture in the filling instructions and tell me what the object is that is being pushed into the bottom of the grease canister. Their final reply was to just use a small screw driver to push the piston up into the canister. That's what I had planned to do (a flat-blade screw driver worked fine).The grease gun was easy to fill and this was the reason I chose this model---it allows you to load it with just about any grease (as long as it isn't too thick to push through a needle nozzle). The gun shoots a very thin ribbon of grease which is great for my application. But I did notice that the pneumatic part of the device was somewhat inconsistent regarding the flow rate of grease. I think the tolerance of the pneumatic plunger is probably a bit too sloppy. (Note: I'm using Park Tool Polylube 1000 with my grease gun. It is a high-quality, all-weather polyurea grease for bicycle bearings.)I'm giving the product 3 of 5 stars because, although it outwardly appeared better than the one in the product photo, the grease flow rate was inconsistent, the instructions were different and confusing, and the seller (ToolTopia) was not familiar with their product.