BGS 74275 Diamond Core Drill Bit Set 20 68 mm 8 pcs.

for easy and quick creation of clean drill holes for screws, outlets and inlets, plug sockets, connector boxes, etc. | compact set composition with the most common and most used sizes skilled craftsmen as well as ambitious do-it-yourselfers are perfectly equipped with this set | ideal addition for tilers, plumbers, electricians etc. | with M14 thread connection for all common angle grinders high diamond grit for longer life | slotted design for better ejection of concrete dust | for the processing of most difficult materials like porcelain, ceramics, granite, marble, and tiles core bits are designed for both wet and dry cutting | incl. 2 additional adapters for use with drill or cordless electric drill | material: carbon steel | diamond grain size: #46 scope of delivery: 1 diamond core drill bit, inner thread M14 x 2, 20 mm | 1 diamond core drill bit, inner thread M14 x 2, 35 mm | 1 diamond core drill bit, inner thread M14 x 2, 40 mm | 1 diamond core drill bit, inner thread M14 x 2, 50 mm | 1 diamond core drill bit, inner thread M14 x 2, 55 mm | 1 diamond core drill bit, inner thread M14 x 2, 68 mm | 1 adaptor, external thread M14 x 2 to external hexagon 6.3 mm (1/4") for drills with standard drill chuck | 1 adaptor, external thread M14 x 2 to SDS shaft for drills with SDS drill chuck