how to drill into patio slab without cracking them

[sunshinewelly]

I have also posted in the garden section but was advised to also post here

I am fitting a patio cover to a patio and the cover has 2 legs with 4 holes for fixing to the slabs

here is the instructions - it comes with screws and plugs and suggests a 10mm drill bit

i also enclose a copy photo of my slabs

should i simply use the screws that come with the patio and follow the guidance ie 10mm holes or is there a better option out there to use so i dont damage the slabs

thinking of starting with a smaller size bit and working my way up to the required size

 

[23vc]

Yes work your way up say 4mm - 6mm - 10mm. Avoid hammer mode

 

[sunshinewelly]

cheers

 

[kingandy2nd]

And wear some shoes when doing it

 

[sunshinewelly]

 

[sunshinewelly]

are 10mm bolts too large - i assume the larger the hole the more risk of damaging the slabs.

are there any smaller strong fixings that are recommended.

 

[23vc]

Just use the fixings supplied. If you drill carefully working your way up you’ll be fine