Cutting Plaster And Lathe That Eats Blades - Electrical - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 12-31-2009, 04:06 PM   #1
Member
 
Join Date: Dec 2008
Location: Western Arkansas
Posts: 323
Rewards Points: 250
Default

cutting plaster and lathe that eats blades


My old house has plaster walls with what appear to be small size rock in the base coat. As well as the wood lathe there is also a metal screen lathe in at least some places in addition to the wood. Not sure why that would be. In any event this plaster eats saw blades for breakfast. Tried my sawzall but it causes quite a bit of damage. My Fein multimaster does not create damage to the surrounding plaster but the teeth are gone before I get two sides of one hole cut. My next attempt if no one can recommend a better approach is going to be a jig saw with some kind of carbide blade. What about some kind of roto zip? Would that work with some kind of carbide or diamond bit to cut the plaster/wood/metal? Don't have one but would purchase if it will make things easier. Thanks

Advertisement

Mike in Arkansas is offline   Reply With Quote
Old 12-31-2009, 04:59 PM   #2
Licensed Electrical Cont.
 
Speedy Petey's Avatar
 
Join Date: Feb 2004
Location: NY State
Posts: 6,905
Rewards Points: 2,162
Default

cutting plaster and lathe that eats blades


Carbide or diamond grit are you only choices.

Rotozip, Multi-Master, Sawzall, etc. Your choice.

Advertisement

__________________
Sometimes I feel like if I answer any more questions it is like someone trying to climb over a fence to jump off a bridge and me giving them a boost.
Answers based on the 2008 & 2011 NEC.
Speedy Petey is offline   Reply With Quote
Old 12-31-2009, 05:04 PM   #3
Licensed Electrical Cont.
 
Speedy Petey's Avatar
 
Join Date: Feb 2004
Location: NY State
Posts: 6,905
Rewards Points: 2,162
Default

cutting plaster and lathe that eats blades


Just to add. I prefer a Rotozip with a small carbide bit. I hold a vac hose right with the tool to catch most of the dust. Works great for me, but it does take a steady hand.
__________________
Sometimes I feel like if I answer any more questions it is like someone trying to climb over a fence to jump off a bridge and me giving them a boost.
Answers based on the 2008 & 2011 NEC.
Speedy Petey is offline   Reply With Quote
Old 12-31-2009, 05:27 PM   #4
Member
 
Join Date: Sep 2008
Location: Massachusetts
Posts: 270
Rewards Points: 250
Default

cutting plaster and lathe that eats blades


I also have rock lathe in my house. The corners are reinforced with a metal mesh. I have tried many different methods but the best one has been to just buy a bunch of cheap keyhole saws and throw them out when they are worn out. After a few box cutouts they are junk but there is not too much of a mess like with a sawzall or rotozip. Also score the plaster with a utility knife before cutting into it with the blade to keep the plaster from chipping.
teamo is offline   Reply With Quote
Old 12-31-2009, 05:34 PM   #5
Member
 
Join Date: Dec 2008
Location: Western Arkansas
Posts: 323
Rewards Points: 250
Default

cutting plaster and lathe that eats blades


Thanks Pete and Teamo
Mike in Arkansas is offline   Reply With Quote
Old 12-31-2009, 09:20 PM   #6
Member
 
firehawkmph's Avatar
 
Join Date: Dec 2009
Location: Near Cleveland, Ohio
Posts: 1,585
Rewards Points: 1,002
Default

cutting plaster and lathe that eats blades


Mike,
If you decide to use your sawzall, lenox makes a blade called the plaster master. It has bigger teeth and doesn't wear out as fast. They also make a blade for rescue personnel that works well also. I wouldn't use it in the metal mesh areas. Those areas I use my half worn metal blades with the smaller teeth. Good way to get rid of them.
Mike Hawkins
firehawkmph is offline   Reply With Quote
Old 12-31-2009, 10:21 PM   #7
Member
 
Join Date: Dec 2008
Location: Western Arkansas
Posts: 323
Rewards Points: 250
Default

cutting plaster and lathe that eats blades


Thanks for the suggestion Mike
Mike in Arkansas is offline   Reply With Quote
Old 01-01-2010, 12:41 AM   #8
Newbie
 
Join Date: Dec 2009
Posts: 2
Rewards Points: 10
Default

cutting plaster and lathe that eats blades


The rescue blade is a good idea, I think that they are bi-metal which will last longer with what you are cutting through. Another idea, although one that might cause a bit more dust, is an angle grinder with a metal cutting wheel. I have used them many times in situations similar to yours. The nice thing about a grinder is that you don't get the vibration that you get with a sazall, which will result in a cleaner cut. Although they are designed for metal they will happily eat through plaster and concrete. If you want to keep the dust down you can wet with a spray bottle as you cut, or have a freind with a shop-vac.
garageguy is offline   Reply With Quote
Old 01-01-2010, 11:13 AM   #9
Member
 
Join Date: Dec 2008
Location: Western Arkansas
Posts: 323
Rewards Points: 250
Default

cutting plaster and lathe that eats blades


Interesting idea, thanks Garageguy.

Advertisement

Mike in Arkansas is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Stud Finding on Plaster and Lathe? Scotsman General DIY Discussions 9 12-06-2009 05:11 AM
Plaster and Lathe Walls AnnaL0602 Remodeling 2 09-13-2009 10:54 AM
Plaster and Lathe walls- covering with drywall Jrr1099 Building & Construction 4 03-24-2008 03:20 PM
Plaster walls and Lathe Keith in Connecticut Remodeling 5 01-03-2008 08:36 PM
replacing lathe and plaster eager2lern Building & Construction 2 12-04-2006 01:52 PM




Top of Page | View New Posts