Diamond Core Drill Bit Distar CS- x / SDS+ 082 x 70-4 x M16

Diamond core drill bit Distar CS- x with SDS+ shank, model 082 x 70-4 x M16 is a purpose-built core bit for creating clean circular cores in masonry, concrete and natural stone. The bit combines a diamond-cutting crown with an SDS+ connection that fits rotary and rotary-percussion drills equipped for SDS+ mounting. An M16 thread on the hollow core allows attachment of adapters or water feed systems when required, while the segmented crown design promotes efficient material removal and longer cutting life under typical jobsite conditions.

Advantages

The diamond cutting edge ensures fast penetration and consistent core quality in hard materials. The SDS+ shank provides secure retention and quick changeover in compatible drills without tools. The segmented crown improves debris clearance and cooling during drilling, reducing clogging and wear. The hollow core with M16 thread enables use with rotational adapters or wet-drilling setups to control dust and prolong diamond life.

Suitable for

• Core drilling holes in reinforced and non-reinforced concrete
• Extracting cores from masonry and brick
• Drilling natural stone such as granite and limestone
• Wet or dry core extraction when used with appropriate adapters and water feed

Key specifications

• Cutting diameter: 82 mm
• Cutting depth/length: 70 mm
• Segment count: 4
• Shank type: SDS+
• Thread interface on core: M16
• Cutting edge: diamond-segment crown

How to use

Select a drill with SDS+ chuck and the appropriate power rating for the material. Mount the Distar CS- x core bit firmly in the SDS+ chuck and, if required, attach an M16 adapter or water feed to the core’s thread. Start drilling at low speed to establish the pilot groove, then increase speed and apply steady, even pressure. For large cores or reinforced concrete, use intermittent lifting to clear debris and avoid overheating. When wet drilling, maintain a controlled water flow to cool the diamond crown and suppress dust.

Usage recommendations

Use appropriate personal protective equipment (safety glasses, dust mask or respirator, hearing protection and gloves). Match drill speed and feed pressure to material hardness; reduce speed and increase cooling when drilling dense stone or reinforced concrete. Inspect the diamond segments regularly and replace the core bit when cutting performance declines.