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EVERYTHING FOR PLANES AND PILOTS SINCE 1965 | 877-4-SPRUCE
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ULTIMATE PROPELLER WRENCH

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5/8 Inch3/4 Inch
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Overview

This custom built Anti-Splat-Aero constant speed propeller wrench was created especially for you and your airplane. This tool is available in 3/4" and 5/8" sizes, its small, lightweight and easy to use making your propeller servicing and installations fast and easy. With just a few flicks of your wrist, the bolts are started and easily run in and torqued. The one end ratchets without removal from the bolts, and the other end is an extremely strong fully reversible Crows Foot for torquing the propeller.

This super wrench is constructed with materials that are very strong, (4130 heat treated steel) then electroplated to meet high standards and will provide you with years of service. Utilizes both 1/2” & 3/8” ratchets, torque wrenches, and extension tools. Crows foot end is offset 15° for double the versatility for difficult bolts behind prop blades. Black oxide plated for years of service and corrosion protection.

Specifications

  • Utilizes both 1/2” & 3/8” ratchets
  • Torque wrenches and extension tools
  • Crows foot end is offset 15° for double the versatility for difficult bolts behind prop blades.
  • Black oxide plated for years of service and corrosion protection.

Reviews

When I pulled this wrench out of the box I thought, hmm, a bit pricey for what it is. But, wow, after using it I highly recommend it!!! This tool is high quality and very nicely machined. It made installation of my Hartzell constant speed propeller an absolute breeze. I wont be loaning this tool out to friends without a deposit.

Joe B
February 4, 2019

If you are thinking about removing or installing a Hartzell CS prop, this is the tool. It allows adequate offset for a torque wrench, and a partially open end for iterating quickly as you install or remove the bolts. It is of obvious quality and quite robust.

Rick D
June 22, 2018

This is a well made product and is great for removal and installation of my McCauley propeller. I wish the price was a little more reasonable. That is the only reason for 4 instead of 5 stars.

Joe
March 25, 2019

Have not used yet but is a quality piece. After use may be a 5 star

Steve C
February 10, 2018

I want to be fair in this review, yet the wrench is not perfect. My review will only address its use in removing/installing the prop on a Mooney 201 w/ the stock 2-blade McCauley. For the nuts not crowded by the prop blades the wrench worked okay for breaking them loose. But on the others the tight spinner-hub required the wrench to be placed on the nut at a significant angle such that it wouldnt engage the nut fully. On one particular nut the wrench slipped off under pressure and gouged its inner surface where the wrench grips the nut. I was surprised that the steel (wrench) was as soft as it was. Once that occurred it was no use trying to break that nut free. Instead I got out my old trusty long-pattern 3/4 combination wrench which easily loosened the nut, even at an angle. I should have just used the combination wrench to break all the nuts free to save wear on the prop-wrench. The pseudo-ratcheting end of the prop-wrench was somewhat functional and does make loosening and tightening the nuts/studs easier and thats likely its most useful feature. Like another reviewer, for my application the wrench’s overall length is too long. The wrench contacts the spinner hub such that it remains at an angle and can’t fully engage some of the nuts. Due to this angled nut engagement there was simply no way to get a ratchet extension into place without using a universal-joint. This would be a perfect tool if it were about ¾” shorter in length. It would be even better if it were 2 separate wrenches (¾” shorter) with one being the pseudo-ratchet and the other a simple open-end with the square ratchet holes. If I did this often I’d buy two wrenches and cut the opposing ends off each one to create such a “set”.

Cnoe
March 2, 2020

Great idea and excellent quality but it simply doesnt do the job in the tight confines of a 3 blade Hartzell Top Prop. Just had to go back to the way and tools Ive used for last 40 years. The inclusion of the Flank Drive feature that Snap On has marketed is however an excellent idea. An extra 1 or so and a bit thinner might help it clear mounting flange and allow clearance for a 1/2 drive.

Richard D
March 31, 2019

Looks great, and well made, handy features, but it was to long to use on a McCauley 3 blade prop. It would be a good thing if dimensions were included in the description.

Mike S
June 3, 2017

Although we were able to make it work and pretty much had no other choice, I though for $80 it would have been a much better quality tool. It is a roughly layer cut piece of steel. Because the opening for the nut is not cut like a normal wrench, but is instead just a rounded on the inside, the wrench has a tendancy to slip off of the nut. Had it been cut like a normal opened end wrench it would have gripped the nut properly. For the amount this cost it seems they would have cut the opened end to fit the nut properly. For a one time use its Ok but if you need to make a living with it I would splurge and buy the correct one from Hartzell.

Dana V
March 30, 2019

Q&A

Q: How long is this? I see a review has an issue w length

Approx 4.5 inches in length.

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