Removing seized and sheared bolts.

[jordan1]

I bought a set of drills similar to yours on Ideal World shopping channel a couple of years ago and have to agree they will drill what others won't touch, only use them as backup mind.

 

[zx9]

Look like the Bosch multi construction bits.

They are good, I had to fix a screen to a ceramic tiled wall in a new shopping centre restaurant. When I saw where they wanted it I refused to drill the tiles thinking the worst, anyhow the site manager told me to mark it out and one of the lads would drill the holes. Bloke turns up with a Dewalt combi drill and a set of Bosh multi construction bits, five minutes later the job was done with no broken tiles. I said at the time that I must get a set of them, I never did.

 

[angellonewolf]

They are good, I had to fix a screen to a ceramic tiled wall in a new shopping centre restaurant. When I saw where they wanted it I refused to drill the tiles thinking the worst, anyhow the site manager told me to mark it out and one of the lads would drill the holes. Bloke turns up with a Dewalt combi drill and a set of Bosh multi construction bits, five minutes later the job was done with no broken tiles. I said at the time that I must get a set of them, I never did.

ive allways drilled tiles with a masonry bit and turn off the hammer

 

[arther dailey]

Dcal.thats spot on

 

[Shox Dr]

ive allways drilled tiles with a masonry bit and turn off the hammer

Same here, I turn the chuck by hand at first until through the glaze. If there’s a void behind the tile I might cut it completely by hand to prevent it breaking.

 

[brightspark]

They are good, I had to fix a screen to a ceramic tiled wall in a new shopping centre restaurant. When I saw where they wanted it I refused to drill the tiles thinking the worst, anyhow the site manager told me to mark it out and one of the lads would drill the holes. Bloke turns up with a Dewalt combi drill and a set of Bosh multi construction bits, five minutes later the job was done with no broken tiles. I said at the time that I must get a set of them, I never did.

I use the bosch multidrills mainly the 6.0mm ones there realy good but some tiles they wont touch. porcelain quarry tiles are a bummer

 

[zx9]

ive allways drilled tiles with a masonry bit and turn off the hammer

What I am prepared to do at home and doing something that has not been allowed for at work is totally different especially when it involves 1200x600 ceramic tiles in a building that is going to open in the next couple of days. I was not going to risk braking one and having to pay to replace it.

 

[zx9]

You could probably grind a conventional cutting edge on a masonry bit, no idea what kind of wheel you would need, green grit or diamond?

 

[brightspark]

You could probably grind a conventional cutting edge on a masonry bit, no idea what kind of wheel you would need, green grit or diamond?

the multidrills have a conventional cutting edge for drilling steel and masonary rather than an impact rotary chiselling effect , before mine get 2 blunt I re sharpen them with a green grinding wheel

 

[cheb]

I used a green wheel to do mine and it worked, I can't why I needed to do it though.

 

[brightspark]

I weld 10mm round bar on to masonary drills to extend them to about 16 inch long for going through walls with .I grind a conventional cutting edge on them so they go through wood as well