Abracs Dry Diamond Core Bits are rotary cutting tools designed to core accurate holes in hard materials such as concrete, brick, block, natural stone and ceramic tile without the need for water cooling. They consist of a steel tube body with sintered industrial diamond cutting segments bonded around the rim, and are intended for use with handheld angle grinders, drill-mounted core drills and light rig-mounted drilling equipment where dry cutting is required.

The core bits are manufactured from a heat-treated C45-equivalent steel tube (EN ISO 683-1) with industrial-grade synthetic diamond grains embedded in a metallic bond (nickel/copper matrix). The steel body is supplied with a machined finish and a corrosion-resistant phosphate/paint coating to reduce surface corrosion during storage and site use. Segment geometry is available in continuous rim, segmented and turbo profiles to suit different materials and cutting speeds; typical segment height is optimised for abrasive life and chip clearance. Abracs Dry Diamond Core Bits are produced under an ISO 9001 quality management system and are designed to meet recognised European tool tolerances for power-tool accessories.

Thread and fitment options are provided to suit common drive systems: many sizes are available with threaded arbors such as M14, M16 or 5/8"-11, and in direct-fit configurations for standard 22.23 mm angle grinder arbors. Where required, SDS and other arbor adaptors can be used to fit drill rigs and hammer drills. Drive characteristics depend on the chosen arbor type; the rim and segment design govern cutting behaviour rather than a separate drive head.

Typical applications include plumbing and heating installers creating pipe and boiler flue penetrations, electricians making meter and conduit cut-outs, tilers and stoneworkers forming service holes, and general construction work for bolt and duct installations. The key benefits of Abracs Dry Diamond Core Bits are consistent abrasive wear behaviour, effective heat-dispersing segment designs for dry cutting, and compatibility with widely used power tool arbors. The bonded diamond concentration and metallic bond selection balance cutting speed with service life and deliver good resistance to abrasive wear and impact loading on masonry.

Duchy Fasteners stocks a practical range of Abracs Dry Diamond Core Bits in multiple diameters (commonly from around 12 mm up to 150 mm), segment types and arbour threads, available as single pieces or multipacks to suit trade and site requirements. If you need specific diameter, thread or segment type advice, contact our sales team for guidance.