SABETZU Hollow Core Drill Bit 70mm Connecting Sds Plus L110mm Mata Bor Bobok Beton Tembok Diamond Hollow Core Bit 70 mm Kepala Mata Bor Gergaji Holesaw Hole Saw 70 MM Bobok Pembolong Pelubang Dinding Dingding Tembok Beton Batu Bata SDS+ 70MM