Core drill bit 65 mm HM with SDS+ shank Dedra DED1505-D

Core drill bit 65 mm HM with SDS+ shank Dedra DED1505-D is a hard-metal (HM) drilling accessory designed for creating 65 mm diameter holes in masonry, concrete and similar building materials. The bit uses an SDS+ shank for secure engagement with compatible rotary hammers and hammer drills, providing efficient transfer of impact and rotation for through-holes required in installations. Its construction focuses on durability and stable drilling performance when installing pipes, conduits or anchors.

Advantages

The hard-metal cutting edge offers extended wear resistance compared with standard steel bits, while the HM construction maintains cutting efficiency in abrasive materials. The SDS+ connection ensures quick, tool-standard mounting and reduces play between bit and tool for more precise drilling. The 65 mm diameter enables standard-sized holes for many plumbing, electrical and mechanical installation tasks. The bit’s design is suitable for use with percussion action to speed drilling in concrete and masonry without the need for water cooling.

Suitable for

• Drilling 65 mm diameter holes in concrete and masonry
• Creating openings for pipes and conduits
• Preparing holes for anchors and fixings
• Use with SDS+ rotary hammers and hammer drills

Key specifications

• Cutting material: hard metal (HM) tip
• Shank type: SDS+
• Drill diameter: 65 mm
• Intended material: concrete, masonry and similar building materials

How to use

Select a rotary hammer or hammer drill with SDS+ chuck compatible with the bit. Secure the bit in the tool’s SDS+ holder according to the tool manufacturer’s instructions. Mark the drilling position and start drilling at low speed to establish the hole centre, then apply steady pressure and use percussion mode for efficient cutting in concrete or masonry. Withdraw the bit periodically to clear dust and debris from the hole and allow the bit to cool. If drilling deep holes, remove debris frequently to maintain cutting performance.

Usage recommendations

Use appropriate personal protective equipment including safety glasses, hearing protection and dust mask. For reinforced concrete, proceed with caution and use a suitable rebar detection method. Do not use the bit in wood or metal; use only in recommended materials. Follow the rotary hammer manufacturer’s guidelines for correct speed, pressure and duty cycle to maximise bit life.