Paving sets greater than 40mm thick manufactured from most materials including concrete, brick, natural or composite stone, can usually be rotary hammer drilled.
Note: To prevent damage to the pavers, they must be properly laid, on a well compacted base, preferably set in a quality mortar without voids. Extra care should be taken near the edge of the pavers - if the drilling template can be moved slightly to avoid drilling on or near an edge, then do so. If unavoidable, drill gently at these locations or if still causing damage, consider diamond core drilling the edge areas.
Tip: if in doubt that the paver is hammer drillable it is usually worthwhile obtaining a sample for trial drilling before starting the job.