SP Air Corporation’s SP-1764 model is a 1/4″ mini impact ratchet wrench. The unit is a reaction free ratchet wrench, so the vibration shock pain from normal air ratchets is not present. Unit specifications include a drive size of 1/4″ and bolt capacity of 5/16″, a max torque of 50 ft-lbs., a free speed of 500 rpm, a vibration level of 2.4 m/s, and a sound level of 83.6 dB. SP Air Corporation is a manufacturer of high quality pneumatic tools with over 30 years of experience. SP Air Corporation’s distribution extends to over 40 countries worldwide. People buy our tools because they have an excellent reputation for getting the job done. They are easy to maintain and come with a full warranty. We understand and appreciate the value of your business. That’s why we have made it our mission to provide you with reliable, quality pneumatic tools. For more than 20 years, we have provided our products and quality customer support for many automotive and industrial clients.
- Exhibits full performance even in a restricted area
- Single dog clutch impact mechanism with rear air exhaust at base of handle
- Durable aluminum housing and protective head cover – Metal Housing Cap Sold Separately as item # 760A-100
- Reaction free while still providing high speed and high torque
- Durable and high quality construction expertly made In Japan

















Scott R –
i like the fact that it is very fast makes removing bolts a lot quicker which speeds up working on vehicles when your a mechanic also like the impact feature its not as strong as my 3/8 ratchet but i like the compactness of it so i can get in tight areas. i have had it for just over a year the 1/4 inch socket adapter broke off about 4 months after i got it i sent it in and they fixed it for free now about literally 2 weeks out of the year warranty the case split in half so now I’m out of a 1/4 inch ratchet and before the case broke the trigger would get stuck and sometimes keep it on
steve wilson –
Never been a fan of air ratchet. There slow and loud. When I seen this one I had to give it a try. I love it. It’s small enough to to get in a lot of places on new cars that normally you would need to use a regular ratchet. Feels well made. The fact that it’s reaction-less and won’t jam your hand in to near by metal is a big plus along with how fast and quit it is. I find myself reaching for this every time I work on a car now and shipping was fast. It came four days earlier then expected which was awesome. Thanks Amazon and thanks sp air for a great tool.
prime suspect –
I love the small size and the speed of this unit. The only disappointment is the max torque of the wrench isn’t anywhere near 50 pounds. I haven’t measured it exactly yet, but I find I have to break loose bolts whenever I am loosening, and have to give an extra half turn or so when tightening them. My full size 3/8 air rachet has much more torque, but is way slower and more cumbersome. I just wish the mini hammer had as much torque as it says it does.
michael –
I am writing this review to inform everyone what a great buy this ratchet is. I have been a mechanic for twenty plus years, and in my experience this is one of my best ratchets yet. It’s extremely affordable and durable. I like this ratchet more then my Snap-on. I was on the fence about this purchase because I didn’t know what to expect, but when I was using it I was pleasantly surprised. I would recommend this ratchet to any serious mechanic. I enjoy using it so much I will be purchasing the 3/8 ratchet. If your thinking about buying this ratchet don’t hesitate just buy it.
William Cervantes –
Out of all the air ratchets I’ve recently binged on, this is the one that takes the gold! I absolutely love it. Its small, lightweight and fast!!! The best part, even though it may not be strong enough to loosen most nuts and bolts, I can rest assured that i can tighten all nuts and bolts down fast and not worry about it breaking anything off. The perfect power to tighten down 8mm/10mm fasteners. A must have tool, where has this been all my life.
Kyle G. –
Crazy quiet free spin compared to the cheap craft – an air ratchet (non impact) that came as part of a kit I initially bought years ago when first getting into air tools. Over 3 inches shorter. Way faster for sure as demonstrated in the videos online… May cost quite a bit for an air impact ratchet but I know I will be able to use this more compared to my old one that is literally sitting in the trash now. I combined my SP with a swivel air connect and can already tell in trying it out that I will get tons of use out of it. This ratchet will save so much time working on anything I do, and time is money… Will probably pay for itself the first job I finish way ahead of schedule.
John Fuller –
Very fast ratchet, very quiet, actually kind of powerful and the reaction less mechanism is awesome.However just now it stopped ratcheting in forward, reverse still works but forward is shot. I’ve oiled it daily with snapon air tool oil, it’s lasted about 5 months of daily hardcore use.I think if sp air is willing to rebuild or replace it, or maybe my Mac guy can send it in for me at little to no charge I’d definitely give this 5 stars.
Jason Feng –
A very powerful mini ratchet. I did not use this air ratchet daily. Only use when my Milwaukee ratchet won’t break loose bolt. This month the 1/4 head snap off. Thanks to Amazon send me a replacement. SP air really needs to improve the quality of the head.