3rd Hand .357

By Robert Robillard on Tool Reviews

Jack Tracy, a General Contractor and Builder with over 25 years experience, recently sent me The Original 3rd Hand .357™ to evaluate. Jack designed this innovative safety device and I was excited to see if it really worked.

3rd Hand .357

3rd Hand .357saw safety-guard

The 3rd Hand .357™ employs a thumb lever that allows the operator to raise and lower the saw’s safety-guard with the same hand that is holding the saws handle / trigger.

The saw blade safety guard has a spring that is designed to open as the user is cutting and to immediately close after the cut.

Often times framers, contractors and carpenters using a circular saw will pin, or shim the guard open with a pencil of small piece of wood in order to make a plunge cut or rip a small section of wood. the problem is that the saw guide stays open until we remove the pin.

This scenario can be dangerous if the contractor slips and falls or forgets that the saw guide is pinned open and puts the saw down with the blade still spinning.

Even though we all do it that does not excuse the fact that it is extremely dangerous to pin open the saw’s protective guard.

3rd Hand .357

The Original 3rd Hand .357™ allows the user to keep both hands on the saw while raising the the lower guard with a thumb lever of the trigger finger hand which increases circular saw safety.

Framing and construction in general can really put a lot of wear and tear on tools. The Original 3rd Hand .357™ feels extremely durable and is light weight [ less than 6oz.] constructed out of durable plastic and aluminum, and best yet, “made in USA!”

The 3rd Hand .357™ safety guide I noticed that the plastic attachment on the saw guide has a curved edge on it. This attachment also nicely accommodated me as an additional holder if I chose to change grips on the saw and hold the blade guard open with my thumb or other finger.

First Impression:

The kit is only two pieces and uses the saws existing screw for attachment. I found it extremely easy to attach.

The parts are durable and beefy.

3rd Hand .357

The guide attached to my saw in less than 5 minutes with the original manufacturer’s screws and two allen wrenches – one was provided and I supplied the other.

I removed these two screws and attached the thumb lever at this location with the same screws.

3rd Hand .357

The saw blade guard lever us removed and the screw is used to attach the black 3rd Hand .357 attachment.


I found the thumb lever easy and smooth to operate while still holding onto the handle and trigger.

3rd Hand .357

Close up of thumb lever.

3rd Hand .357

The 3rd Hard .357 comes with a 30 Day Money Back Guarantee. It fits the following worm drive circular saws: Skil 77, Skil Mag 77, Craftsman model 2761, and the Bosch 1677.

3rd Hand .357

Plunge cuts on with the 3rd Hand .357™ were easy. It is definitely a step in the right direction for increasing circular saw safety.

See more product information and description at http://www.the3rdhand.com/

Click here to buy your own 3rd Hand .357™ circular saw safety guide.

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About the author

Robert Robillard

Carpenter / Remodeler / Editor

Rob Robillard is “The Concord Carpenter” Rob is a builder, general contractor, carpenter, woodworker, and editor of Concord Carpenter and ToolBoxBuzz As a General Contractor and carpenter, Rob owns and operates Concord Carpenter LLC. A full-service remodeling and construction company. Rob is a recognized leader in home building best practices and a source for how-to information for building professionals. On this website, Rob covers all aspects of home construction, building science, home improvement, woodworking, remodeling, and some of the best product and tool reviews. Rob is in charge of our Tool and Product Review series - Concord Carpenter Videos where we post all of our tool reviews and video tutorials. Rob approaches remodeling and building construction with a pragmatic and problem-solving approach. He enjoys using his knowledge and experience to help and educate building professionals as well as DIYers on best practices in the construction and remodeling industry. He's a strong advocate for "raising the bar" in the construction trades and promoting the trades to youth. #BeAMentor #Green2Great Craftsmanship, quality, and pride guide his journey on this channel The Concord Carpenter's motto: "Well done is better than well said!" : Read more about Rob

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