Your search for "concrete drilling machine" revealed the following:

Bosch-accessories 2608601378 Diamond wet core cutter 1 1/4" UNC Best for Concrete

Technical data Part no. 2 608 601 378 Packaging type Paper / Cardboard / Corrugated board - Packaging, box, no Euro hole Pack quantity 1 Minimum order quantity 1 Description Diamond wet core cutter 1 1/4' UNC Details Diameter mm 202.0 Working length mm 450.0 Number of segments 14 Segment...

Bosch-accessories 2608597665 Concrete drill bit CYL-3 10 x 80 x 120 mm, d 9 mm

Technical data Part no. 2 608 597 665 Packaging type Combined cardboard / plastic packaging, Tight Pack, with Euro hole Pack quantity 1 Minimum order quantity 5 Description Pack of 1 Details Diameter (D) mm 10.0 Working length (L1) mm 80.0 Total length (L2) mm 120.0