Skil SHD77M 15 Amp 7-1/4-Inch Mag Worm Drive Circular Saw

by Skil

Product Description

Amazon.com Product Description

The SHD77M Worm Drive SKILSAW continues the long tradition of quality, rugged durability and consistently exceptional cutting performance that users have come to expect from SKIL. The SHD77M incorporates decades of on-the-job research and dedication to deliver the world's best cutting tool. For more than 80 years, the SKILSAW has proven to be an invaluable tool on America's residential and commercial construction sites.

15-amp motor delivers power to spare, while tough worm drive gearing increases saw life.

Magnesium die-cast housings make the SHD77M 2 pounds lighter than aluminum models. View larger.

Comes with a 24-tooth carbide-tipped blade.

Magnesium die-cast housings make this saw 2 lbs lighter than aluminum models 15-amp motor delivers the power to rip through more lumber in less time Tough worm drive gearing lasts 5 times longer than hypoid gears 24-tooth worm drive blade combines thin-kerf, precision-ground titanium carbide teeth, and tri-metal shim braze for demanding applications 2-position saw hook ensures safe rafter placement Patented Anti Snag lower guard provides smooth operation for small cut-off pieces 20-amp AC/DC switch provides maximum reliability Durable aluminum foot is designed to endure jobsite abuse

Innovative Features and Benefits
The SHD77M SKILSAW, commonly referred to as the MAG77, is a full two pounds lighter than aluminum models, allowing the user to work longer with less fatigue. This model features magnesium rather than aluminum housings along with a rugged aluminum foot to reduce weight yet maintain the durability expected by professionals.

The SHD77M delivers 15 amps of power, benefiting from the new high-temperature wiring. Additional features include durable worm drive gearing and a patented Anti Snag lower guard. The SHD77M comes with a 24-tooth carbide-tipped worm drive blade ready to go to work. An oil indicator and push-button spindle lock provide assistance with maintenance and blade replacement, while a two-position saw hook ensures safe rafter placement.

SKIL Heritage
SKIL Power Tools is a leader in portable electric power tools and accessories that serves the consumer do-it-yourself and professional construction markets. Founded in 1924 with the invention of the SKILSAW Worm Drive, SKIL now delivers a complete line of power tools designed and engineered to help do-it-yourselfers achieve home project success, while providing professionals durable, cost-conscience tools for the jobsite.

What's in the Box
SHD77M 7-1/4-Inch Worm Drive SKILSAW, 24-tooth carbide-tipped blade, and wrench.

Product Specifications Amperage: 15 Arbor Size: Diamond Blade Diameter: 7-1/4" Blade Size: 7-1/4" Certifications: UL, CSA Cord Length: 8' Depth of Cut at 45°: 1-15/16" Depth of Cut at 90°: 2-3/8" Max. Bevel Cut: 45° No Load RPM: 4,600 Power/Duty: Heavy Duty Rating: 120V Weight: 14 lbs

Product Description

7-1/4" Magnesium Mag 77 Worm Drive Circular Saw, 15A, 4,600 RPM, Magnesium Motor & Gear Housings, Aircraft Quality Aluminum Foot, Skil Exclusive High Torque Distributed Wound Field, Precision Machined Worm Gears, Oil Pressure Relief Bellows Prevents Leaks, Skil Exclusive Oil Level Indicator, Blade Guard Automatically Retracts On A 45 Degree Angle, All Ball Bearing, Push Button Blade Lock, Diamond Arbor, Handy Depth Scale, Ruler Scale On Front Of Foot, Includes An 24 Tooth Carbide Blade & Saw Hook.

Product Details

• Product Dimensions: 7.8 x 20.8 x 9 inches ; 17.2 pounds
• Shipping Weight: 17.2 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B000P7MAGA
• Item model number: SHD77M
• Average Customer Review: 4.0 out of 5 stars  See all reviews (24 customer reviews)
• Amazon Best Sellers Rank: #10,093 in Home Improvement (See Top 100 in Home Improvement)
  • #26 in Home Improvement > Power & Hand Tools > Power Tools > Saws > Circular Saws

Customer Reviews

Most Helpful Customer Reviews

36 of 42 people found the following review helpful:

4.0 out of 5 stars The Pursuit of Happyness, August 30, 2007

By 

Doctor Mark "Cheap Scientist" (honolulu, HI, USA) - See all my reviews

This review is from: Skil SHD77M 15 Amp 7-1/4-Inch Mag Worm Drive Circular Saw (Tools & Home Improvement)

This is the son of the saw that built America, aka the Skilsaw. Notice that it's Skil and not Skill, and Happyness vs. Happiness. Today this saw has more variants than a 60's Corvette. The most recent upgrade includes a magnesium housing, aluminum foot, higher temperature motor wiring, and 2 more amps of current usage (hopefully translating into more power). Like many of you who don't own a worm drive Skilsaw, I was confused and am still confused about which one to buy. When in doubt, buy the most expensive model in the line. Ha ha. There are variants built out of steel, those with a removal cord, and even one that sits on wheels. This is not a joke. I saw one with an accessory plate that had 4 wheels on it. I ordered this just to have a saw that could ride atop concrete. The accessory was priced at $62, and is not offered by Amazon yet. Stay tuned. Anyway, the version of the SHD77M you should buy is the SHD77M-22. That version has a cloth bag. Now let's get to my evaluation of the saw. Power corrupts absolutely. There is no substitute for power. Once you get used to power, you don't want to go back. If you are cutting moist 2 x 12's or are building a deck with Ipe or Tiger Deck materials, a smooth and powerful saw is your only ticket. Another thing this saw does is score concrete. I use this term lightly because a 1/4" depth of cut is almost like scoring the material. That's Skil's recommendation, but you might want to plunge 1/2" with the right blade. Make sure it can take the rpm of this saw. They also recommend successive cuts, which I like to do just to keep the heat down. Okay, now that I have described the power and smooth sound you get out of this saw, let me get down to precision. First, the included carbide blade is disposable. The tips, when viewed closely, have chips on the side. But it cuts and it came with the saw, so use it until you have need of a better blade. Others have noted that the base plate is not exactly level. It bows in the middle looking front to back. You don't even need a precision level to see this, as it is off by around 1/32" or so. On a large flat surface, maybe 20% of the plate is resting on the wood. This might be a design or manufacturing issue. I could theorize how this could be good, as it reduces the friction/drag as you slide across wood. There is a saying in woodworking that you should measure twice and cut once. However, when you build a house, there are instances where you measure once and cut twice. The second cut is with the wood nailed in place. You want the saw to slide smoothly and not get snagged anywhere. A swirl or gouge on an edge can ruin the piece or pieces. So, I have to assume that Skil designed the plate based on a lot of hands-on experience. As for fit and finish, the plate is rugged (thick) but not a perfect rectangle or even a parallelogram. I tried using the left and right edges against a metal fence to determine which one gave a cut parallel to the fence. The right side won. Lefty was a little off (I'm picky). The amount of metal on each side is sufficient if you want to machine it square, but why bother? Out of the box, the blade cut at 90 degrees along the vertical. This is good, and should save you from having to shim the saw (you have to loosen some Torx screws to accomplish this). The two v-notched cutting guides are accurate, and acceptable for this type of tool. The handles are made of a plastic or composite. Since I did not subject this to a drop test, I can't vouch for their longevity. But plastic worries me. Too much plastic in a Bosch saw cheapened it. Luckily the two most stressed user adjustment points on the Skilsaw, the depth and miter screws/levers are both metal. Overall, I am pleased with this saw. It is not perfect, but then it does not cost as much as a Hilti. Nor was the Skilsaw designed for precision finish woodwork. That's what my table saw and miter saw are for. This is a carpenter's saw. I hope the new generation is as reliable as the old.

16 of 20 people found the following review helpful:

1.0 out of 5 stars Do Not Buy This Saw, June 17, 2009

By 

sbextra3 (United States) - See all my reviews

This review is from: Skil SHD77M 15 Amp 7-1/4-Inch Mag Worm Drive Circular Saw (Tools & Home Improvement)

I purchase all of my tools (way too many if you ask my wife) from Amazon and very rarely, because I read all of the user reviews, am I disappointed. In this case I didn't listen to the one reviewer who found the problem with the base plate wobble. After a number of hours trying to figure out why I kept failing to get "square" cuts I finally figured out it was this miserable saw. The plate has a heavy 1/16th to 1/8th play that can't be tightened away. It's how the pin that holds the plate is machined.

Thankfully, Amazon stood by this defective product and accepted the return.

I too always go by the user reviews but BEWARE this time, the 4 to 5 star review is deceiving. If you get one of these defective saws you'll be very very frustrated. I'd get something else until Skill fixes this design problem.

16 of 20 people found the following review helpful:

1.0 out of 5 stars Skil saw warped base plate, September 3, 2008

By 

Sepp Meier (Madison, NH, USA) - See all my reviews
(REAL NAME)   

This review is from: Skil SHD77M 15 Amp 7-1/4-Inch Mag Worm Drive Circular Saw (Tools & Home Improvement)

My new Skil SHD77M arrived. I heard that there was a problem of the base plate not being flat, but assumed Skil had fixed that. Mine is way out of flat! The whole saw rocks as you place it on the work piece. So, back she goes. What a pain.