For medium-hard concrete products, hard bricks and highly compacted sand-lime bricks (Plus, color coding system: blue), laser-welded segments, M16 thread for use in hammer drills with SDS-Plus / TE-C mount, conical adapter for use in drills with M18 x 2.5, large-volume ejection grooves for easy removal of the drill core, Note: By selecting the right core bit for the material available, the service life of the diamond segments can be significantly increased! Please note: When drilling, countersink bits should always be used without a hammer blow! Working depth: 65 mmDiameter: 68 mm