BigBlue™ 3T Flat Roof Demolition Blade for circular saw (7-1/4 in.)

$30.00$216.00

Cut 5x longer than competing demo saw blades when used on dense and gummy materials like tar & gravel, modified roofing, rolled roofing, gravel stop, rigid insulation, and much more with the clog free BigBlue™ 3T Flat Roof Demolition Blade!

Over 5,000 sold!

SKU: BB-111 Category:

Description

See what makes BigBlue™ 3T Flat Roof Demolition Blade different.

Cut through dense and gummy materials like butter with BigBlue™ 3T.

  • Tar and Gravel / Built-Up Roofing / 4-Ply
  • Galvanized Metal
  • Ice Shield
  • Cap Sheet
  • TPO and EPDM
  • Cedar Shakes
  • Rolled Roofing
  • Flashing
  • Gravel Stop
  • Modified Roofing
  • Drip Edge
  • Salvage Edge
  • Shingles and Heavy Nails (5 Layers)
  • Coal Tar Pitch
  • Flashing
  • Rigid Insulation
  • And Much More!

Cut skylight openings through tar & gravel with BigBlue™ 3T.

YouTube video
Recorded after cutting 24 skylight openings using one BigBlue™ 3T blade.

Love these blades for cutting through old roofs to set HVAC curbs! … Hot knife through butter I say, with NO gumming up the Saw. I still can’t believe it and I was the one using it! Every HVAC & Roofing Supply House should have these blades!”

— Darren

Save time removing commercial and residential roofing materials

  • Cut in tight spots where commercial cutters will not fit (under conduit, around makeup air units, and near roof edges).
  • Cut commercial roofing materials without a heavy roof cutter (cut in curbs, small repairs, or maintenance).
  • Cut openings for air conditioning units and skylights.
  • Cut modified roofing into sections (faster than utility knife).
  • Cut multi-layer shingle roofs into sections for easier removal and quicker clean up.

Durable & Long-Lasting

300+ ft
Tar and gravel
1,000+ ft
Coal tar pitch (smooth)
5,000+ ft
Shingles and heavy nails (2 layers)

Everlasting carbide teeth with extra-wide kerf.

Cut through extremely dense and gummy materials without chipping, warping or cracking.

Clog Free. Bind Free.

Massive gullets provide space to remove debris and reduce friction to keep the blade spinning.

Saw Compatibility

Fits 7-1/4″ circular saws and worm drive saws.

How to remove diamond twist out
  1. Place blade on hard surface.
  2. Insert screwdriver through arbor.
  3. Apply downward force on blade and screwdriver.

Additional information

Weight 0.5 lbs
Dimensions 7.5 × 7.5 × 0.25 in
Arbor

13/16 in., 5/8 in.

Compatible

Circular Saw, Worm Drive Saw

Cutting Depth

2-1/4 in.

Diameter

7-1/4 in.

Kerf

.19 in.

Plate

.1 in.

Package Quantity

1 Blade, 4-Pack, 8-Pack

30-Day Money-Back Guarantee

We understand skepticism. We have been burned by products that don't live up to their claims too. That is why our products come with a 30-Day Money-Back Guarantee.

Customer Reviews

Based on 47 reviews
91%
(43)
0%
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4%
(2)
2%
(1)
2%
(1)
F
FISCHER C. (Festus, MO)
My experience

When i seen this add I had to try it. I was tearing off a flat roof that was around 5 inches thick. I don't know how many layers but i was impressed that blade cut threw it. 5'by5' squares around 1200 sq' and used 1 blade. Once you make the fist cut of around 2 1/2 " the roofing below crumbly. VERY IMPRESSED

M
Michael C.N. (Spring Valley, CA)
Big Blue, Big Power

This is the perfect blade for cutting through roofing. I cut about 100 linear feet of a two layered roof and it never gummed up or slowed the saw down. Highly recommended.

J
James M. (Philadelphia, PA)
Works great

Worked better than expected. Roofing doesn't gunk up in the saw either. I mean the big cutter is more powerful but this thing is a gem. You can absolutely do a whole roof, if you don't have access to a cutter. Just take it easy on the circ saw. Don't force it...

D
Daniel R. (Covina, CA)
Shingles vs Tar & Gravel

I first bought the Big Blue 5T and I thought it worked well on the demolition of my tar and gravel roof. But when I thought I needed a 5T replacement I read your website and saw that the 3T would probably work better on Tar & Gravel removal. The 3T has worked better than the 5T. The 3T doesn’t get as clogged with tar as the 5T.

T
Trace O. (Sylvania, OH)
Amazing Blade

Bought the 3 tooth blade. It was amazing Ripped through 3” of tar like it was butter

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