Cutting Shingles with Multi Oscillating Tool


#1

Was looking at the powered shingle cutters - basically a pneumatic auto body saw with a big hook blade - and saw a video of a guy using an multi tool.

OMG

Using any blade that has a radially aligned side, it will cut like butter. AND it leaves a perfectly smooth edge - not a ragged one. NOTE: The cutting action you want is the side of the blade pounding it’s way through the edge of the shingle - NOT the slicing action like when sawing through wood.

There are some hook blades that would work nicely too, I am sure, however, I used a crappy scraper blade that came in a WalMart pack. The blade can easily be “resharpened” because it is not the sharpness of the edge, but it’s profile.

I’m working on a small 7 square hip roof with 4 dormers that is all cutting. Seriously, putting 2 full shingles in a course is a joy to behold. There are only about 6 courses that run from hip to hip uninterupted. 160 pieces of step flashing, over 100 ft of ridge or hip. LOTS of cutting. Now it’s FUN!

… I take that back, not fun, but maybe a little entertaining… Doing job solo and WANT IT DONE.


#2

Go to your friendly neighborhood roofing supplier and purchase a couple 5 packs of Big Hook blades, if they have the AJC English style get that those.


#3

Single ply 3-tab, I wouldn’t argue. However 2-ply dimensional is another matter. I have a cut board and have always straight blade scored the backs and then fold and snap - 1 or 2 scores for 1-ply, 3 to 6 for the 2-ply and I still have to snap them which leaves a rough edge. And 50 degree weather (and colder) makes it worse yet. I will say pulling my AJC hatchet with a straight blade from the top is reasonable when rippng ridge edges - but that is crude work and not precision cuts. NOTE: Do you mean the German blades?


#4

Good us made hook blades usually work fine on archs. If they are cold and cutting a double or triple laminate an old pair of 12 or 14" metal shears also works great.


#5

AJC is the brand and English Big Hook Blade is the specific style.


#6

I think I’ll order the AJC English Big Hook which are only $22/100 shipped. But what about their “German” Big Hook which are $55/100? Are they worth the premium?

What I don’t get is that the AJC English Big Hook blades DO NOT have the square hole that let’s them be used in their hatchet.


#7

They may be German, the more expensive ones that come in a cardboard box as opposed to a plastic holder.


#8

I just added a picture.

The one that is on top of the cardboard box is what they used to call the “English hook blade”, they changed it a couple/few years ago that’s how I ended up with 100 useless cheapazz small hookblades.


#9

OK, the lower one with the big hole is the $51/100 Big Hook Blades.

The upper one is the “English Hook Blade Dispenser” for $22/100 - they say from Sheffield England but don’t say “Sheffield steel.”

So the good blades are the $51/100?


#10

They cost me something like $38, but yes the one that is obviously superior to the others.


#11

Then there is the BatBlade:

image


#12

Is that supposed to be for asphalt shingles?


#13

Shingles, plastics, fiberglass.

It is on eBay. I think they have a video cutting a 5in hole in a shingle.