For hard concrete products and highly compressed sand-lime brick (Quadroblock)Laser-welded segmentsThread mount: M16Adapter conical for use in drills with M18 x 2.5Ejection slots for easy removal of the drill coreAbrasive: Diamond in metallic bondBase body: SteelWorking depth: 70 mmGrinding layer height: 10 mmWall: 2 mmColor coding system: BlackWear protective clothing, goggles, ear protectorsCaution: Core drills should always be used without hammering
