Bosch Professional Wet Diamond Core Cutter 72 x 450 mm, 1 1/4" UNC

The Bosch PRO Core Cutter Wet 72 × 450 mm, 1 1/4" UNC is a single-piece diamond drill bit designed for wet coring. It is intended for drilling clean holes through standard and reinforced concrete, with a 72 mm cutting diameter and a 450 mm working length. Used with an external electric diamond core rig, it requires a constant supply of water. The water suppresses airborne dust and cools the cutting face during use. Operators use this wet method to remove material accurately in dust-sensitive environments.

The bit is built from diamond grit distributed evenly throughout a solid metal matrix, giving it the rigidity to resist deflection and stay on line under load. The base has a standard 1 1/4" UNC threaded shank, which fits matching professional spindles and transfers motor torque without slipping. Weighing 2,300 g, the assembly has enough mass to keep the rotating axis stable. The secure mounting and stable geometry together produce consistent, round openings for service entries and structural anchors.

• 72 mm overall diameter for accurately sized openings for large conduit and plumbing runs.
• 450 mm working depth for continuous penetration through thick concrete slabs in a single pass.
• 1 1/4" UNC internal thread for direct, adapter-free mounting to standard wet core drilling rigs.
• Diamond grit in a metal matrix maintains cutting performance and edge condition over repeated use.
• Wet drilling compatibility channels water to the cutting zone to prevent heat damage and control concrete dust.
• 2,300 g total weight adds the mass needed to keep the bit from wandering during the initial cut.