Master Airscrew Performance 12x4.5 Multi-Rotor Series 2-Blade Propellers - Black, 2 pcs

I have always been a big fan of Master Airscrew props. Good solid quality, well balanced right out of the bag, and good performance.

I am usually the guy to buy cheap props for my small copters because I beat them up so badly. I just recently built a new larger bird and decided to spend a few extra cents on better props. I had ordered a XOAR PJP set, and an off brand carbon fiber set along with these all in 12x4.5. Not only were these the best price, but they also functioned the best of the three. These props showed a significant near 2 minute increase in flight time over the others purchased. Not to mention They look good, balancing was reasonable, and the build quality is better than you would expect for this price. Highly recommended.

Looking for props for a new build of a Tarot 650. I was limited by the fact that I had 30 TY-Motor 2212s in stock and wanted to use them. After running the numbers on E-calc the 12x4.5s looked to be the best option but most importantly they were in stock on Amazon. Performance was very good and the only complaint is that there were no shaft adapters included. Luckily I was able to take some Gemfan adapters and ream them to the required diameter. Vibrations were lower out of the box (I have not yet balanced the props) and the craft handled very well. I'll be buying more for my other copters with the 2212s.

ordered these for replacing my original 8045 props. received them quickly. mounted them on my drone. they looked strange. i couldn’t tell what it was. so i go ahead and test them out. start up my drone, everything seems fine... after GPS sync i begin to lift off. everything is going fine. i do a couple of low speed laps. everything seems good. so i climb to about 20+m. flip it into sport mode. and begin to accelerate. as i do so, 3-5 seconds into the acceleration, one of the props disintegrates right there in mid flight. the audible alarm sounds and my drone tumbles out of the sky from about 20m in the air doing about 20-25km/h in horizontal speed. when i find my drone it is in multiple pieces. in the pics i included. u can see the bracket mount that holds the arm to the body of the drone has been pushed half way down the arm with the screw that goes all the way through the arm still attached to the mount. as well as the damage to the arm that the screw did when it was forced to the middle of the arm. the battery was damaged by the same arm being jammed into the body of the battery. this almost causers a fire. i gathered up the pieces and took them home and upon closer inspection. the props were not 8045s they were 9045s. so i m no prop jockey. my knowledge of prop characteristics and effects on performance is minimal. but i m quite sure that, one of them disintegrated in mid flight causing catastrophic damage to everything attached to them. now, i could not tell u if the same thing would happen if they were 8045s instead of 9045s... because i will never buy props from this manufacturer again or any seller that has props that have the same features as these.

Works great on my BMJR Spacewalker. Running an Axi Gold Line 2208/34 on a 3s it has good low end power.

The best props I have ever bought that aren't dji. Strong, pretty much balance out of the bag. Sooo much torque.

Ok props but they are missing the size rings. Didn't notice that it was sold septratly. why? They are required to make these props work, its not like its alot of plastic for some o rings.

Accidentally bought them but I kept them to help me push to build a 13 in quad. So far they look and feel like very good quality. That’s all I can say at this tone. Maybe in a year I can update the review